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Important Notice Regarding the Availability of Proxy Materials for the Extraordinary General Meeting of Shareholdersto be held on [●], 2022.This notice of extraordinary general meeting of shareholders and the accompanying proxy statement/prospectusare available at: https://www.cstproxy.com/ithaxacquisitioncorp/2022.Please mark your votes like thisCLASS A PROXYXTHIS PROXY IS SOLICITED BY THE BOARD OF DIRECTORS.1. The Business Combination Proposal-RESOLVED, as an ordinary resolution, that ITHAX’s entry into (1) the Busi- ness Combination Agreement, dated as of December 20, 2021FOR AGAINST ABSTAIN4(b). Advisory Governing Documents Proposal B- RESOLVED, as a non-binding advisory resolution that the au- thorization to the New Mondee Board to issue any or all sharesFOR AGAINST ABSTAIN(as may be amended, supplemented or otherwise modified fromtime to time, the “Business Combination Agreement”), by and among ITHAX, Ithax Merger Sub I, LLC, a Delaware limited liability company and wholly owned subsidiary of ITHAX (“First Merger Sub”), Ithax Merger Sub II, a Delaware limited liability company and wholly owned subsidiary of ITHAX (“Second Merger Sub”) and Mondee Holdings II, Inc., a Dela- ware corporation (“Mondee”), a copy of which is attached to the proxy statement/prospectus as Annex A, pursuant to which, among other things: (a) in connection with the de-registration of ITHAX as an exempted company in the Cayman Islands and the continuation and domes- tication of ITHAX as a corporation in the State of Delaware (the “Domestication”): (i) each issued and outstanding Class A ordinary share, par value $0.001 per share, of ITHAX (the “Class A ordinary shares”), will be converted into one share of Class A common stock, par value $0.001 per share, of New Mondee (the “New Mondee Common Stock”) and each issued and outstanding Class B ordinary share, par value $0.001 per share, of ITHAX (the “Class B ordinary shares”), will be converted into one share of Class B common stock, par value $0.001 per share, of New Mondee (the “New Mondee Class B Common Stock”) and (ii) each issued and outstanding whole warrant representing the right to purchase Class A ordinary shares of ITHAX will automatically convert into the right to purchase one share of New Mondee Common Stock at an exercise price of $11.50 per share on substantially the same terms and conditions set forth in the Amended and Restated Warrant Agreement between Continental (as defined herein) and New Mondee, to be dated the Closing Date (the “Amended and Restated Warrant Agreement”); (b) following the Domestication, First Merger Sub will merge with and into Mondee, with Mondee surviving such merger as a wholly owned subsidiary of New Mondee (the “First Merger”, and the time at which the First Merger becomes effective, the “First Effective Time”), and immediately following the First Merger, Mondee will merge with and into Second Merger Sub, with Second Merger Sub surviving such merger as a wholly owned subsidiary of New Mondee (the “Second Merger”, together with the First Merger, the “Mergers”, and the time at which the Second Merger becomes effective, the “Second Effective Time”); (b) at the First Effective Time, (i) all shares common stock of Mondee outstanding as of immediately prior to the First Effective Time shall be cancelled and automatically converted into the right to receive an aggregate of 60,800,000 shares of New Mondee Common Stock (the “Merger Consideration”), (ii) all shares of common stock of Mondee held in treasury of Mondee and all shares of Mondee common stock owned by any direct or indirect wholly owned subsidiary of Mondee immedi- ately prior to the First Effective Time shall be cancelled without any conversion thereof, (iii) each issued and outstanding unit of First Merger Sub immediately prior to the First Effective Time shall be converted into and exchanged for one validly issued, fully paid and nonas- sessable share of common stock of the first surviving company (the “First Surviving Com- pany Common Stock”), (iv) pursuant to the Proposed Charter, each share of New Mondee Class B Common Stock will be converted into one share (subject to adjustment) of New Mondee Common Stock and New Mondee will change its name to “Mondee Holdings, Inc.”; and (v) New Mondee and Continental will enter into the Amended and Restated Warrant Agreement; and (c) at the Second Effective Time, (i) each issued and outstanding share of First Surviving Company Common Stock shall be automatically cancelled and shall cease to exist as of the Second Effective Time; and (ii) each issued and outstanding unit of Second Merger Sub immediately prior to the Second Effective Time, shall automatically be convert- ed into and exchanged for one validly issued, fully paid and nonassessable interest of the second surviving company; and (2) certain related agreements (including the Subscription Agreements, and the Registration Rights Agreement, each in the form attached to the proxy statement/prospectus as Annex F and Annex G, respectively), and the transactions contem- plated thereby, be approved, ratified and confirmed in all respects.of New Mondee Preferred Stock in one or more classes or se-ries, with such terms and conditions as may be expressly determined by the New MondeeBoard and as may be permitted by the DGCL be approved.FOR AGAINST ABSTAIN4(c). Advisory Governing Documents Proposal C- RESOLVED, as a non-binding advisory resolution that the re- moval of the ability of New Mondee stockholders to take actionby written consent in lieu of a meeting provided, however thatthe holders of New Mondee Preferred Stock may take action by written consent to the extent provided by the Certificate of Designation with respect to the New Mondee Preferred Stock, be approved.4(d). Advisory Governing Documents Proposal D- RESOLVED, as a non-binding advisory resolution that the re- placement of the Existing Governing Documents be approvedFOR AGAINST ABSTAINand that all other changes necessary or, as mutually agreed ingood faith by ITHAX and Mondee, desirable in connection with the replacement of Existing Governing Documents with the Proposed Charter and Proposed Bylaws (copies of which are attached to the proxy statement/prospectus as Annex B and Annex C, respectively) as part of the Closing of the Business Combination, including (i) changing the post-Business Combi- nation corporate name from “ITHAX Acquisition Corp.” to “Mondee Holdings, Inc.” (which is expected to occur at the First Effective Time), (ii) making New Mondee’s corporate existence perpetual, (iii) adopting Delaware as the exclusive forum for certain stockholder litigation and the United States federal district courts as the exclusive forum for litigation arising out of the Securities Act of 1933, as amended, and (iv) removing certain provisions related to our status as a blank check company that will no longer be applicable upon consummation of the Business Combination be approved.4(e). Advisory Governing Documents Proposal E- FOR AGAINST ABSTAINRESOLVED, as a non-binding advisory resolution that the elec- tion of New Mondee to not be governed by Section 203 of the DGCL and limiting certain corporate takeovers by interested stockholders be approved.5. The Nasdaq Proposal-RESOLVED, as an ordinary resolution, FOR AGAINST ABSTAINthat for the purposes of complying with the applicable provisions of Nasdaq Listing Rule 5635, the issuance of 7,000,000 shares of New Mondee Common Stock in the PIPE Financing be ap- proved and adopted in all respects.6. PROPOSAL 6 IS NOT APPLICABLE TO CLASS A ORDINARY SHAREHOLDERS.7. The Equity Incentive Plan Proposal-RESOLVED, as an ordinary resolution, that the New Mondee 2022 Equity Incentive Plan, a copy of which is attached to the proxy statement/pro- spectus as Annex D, be adopted and approved.8. The Equity Stock Purchase Plan Proposal-RESOLVED, as an ordinary resolution, that the New Mondee Employee Stock Purchase Plan, a copy of which is attached to the proxy state- ment/prospectus as Annex E, be adopted and approved.9. The Adjournment Proposal-RESOLVED, as an ordinary resolution, that the adjournment of the extraordinary general meeting to a later date or dates (A) to solicit additional proxiesFORAGAINST ABSTAINFORAGAINST ABSTAINFORAGAINST ABSTAIN2. The Domestication Proposal-RESOLVED, as a special resolution, that (a) ITHAX be transferred by way of continuation to Delaware pursuant to Article 32 of the amended and restatedfor the purpose of obtaining approval by the ITHAX sharehold-ers of each of the proposals necessary to consummate the transactions contemplated by the Business Combination Agreement, (B) for the absence of a quorum or (C) if the holders of the Class A ordinary shares have elected to redeem a number of Class A ordinary shares as of such time that would reasonably be expected to result in the conditions required for the closing of the Business Combination Agreement to not occur; provided that, without the consent of Mondee, in no event shall the extraordinary general meeting of shareholders be adjourned to a date that is more than fifteen (15) business days later than the most recently adjourned meeting or to a date that is beyond the termination date of the Business Combina- tion Agreement, at the extraordinary general meeting be approved.FOR AGAINST ABSTAINarticles of association of ITHAX, Part XII of the Companies Act(As Revised) of the Cayman Islands and Section 388 of the General Corporation Law of the State of Delaware and, immediately upon being de-registered in the Cayman Islands, ITHAX be continued and domesticated as a corporation under the laws of the State of Delaware;(b) in connection therewith, to adopt upon the Domestication taking effect, the certificate of incorporation of New Mondee (the “Interim Charter”), in the form appended to the accompa- nying proxy statement/prospectus as Annex I, in place of ITHAX’s memorandum and articles of association currently registered with the Registrar of Companies of the Cayman Islands (the “Existing Governing Documents”) and which will remove or amend those provisions of ITHAX’s Existing Governing Documents that terminate or otherwise cease to be applicable as a result of the Domestication; and (c) file the Interim Charter with the Secretary of State of the State of Delaware, under which ITHAX will be transferred by way of continuation out of the Cayman Islands and domesticated as a corporation under the State of Delaware.3. The Proposed Charter and Bylaws Proposal-RESOLVED,FOR AGAINST ABSTAINas a special resolution, that the Interim Charter of ITHAX to bein effect upon the Domestication (a copy of which is attached tothe proxy statement/prospectus as Annex I) be replaced in itsentirety with the Proposed Charter and Proposed Bylaws of New Mondee (copies of which are attached to the proxy statement/prospectus as Annex B and Annex C, respectively), which be approved as the amended and restated certificate of incorporation and the bylaws of New Mondee, effective at the First Effective Time.4(a). Advisory Governing Documents Proposal A- FOR AGAINST ABSTAINRESOLVED, as a non-binding advisory resolution that the change in the authorized share capital of ITHAX, first (a) upon the Domestication, from (i) US$111,000 divided into100,000,000 Class A ordinary shares of US$0.001 each, 10,000,000 Class B ordinary shares of US$0.001 and 1,000,000 preference shares of US$0.001 each, to (ii) US$111,000 divid- ed into 100,000,000 shares of Class A common stock, par value $0.0001 per share (“New Mondee Common Stock”), 10,000,000 shares of Class B common stock (“New Mondee Class B Common Stock”), and 1,000,000 shares of preferred stock, par value $0.0001 per share (“New Mondee Preferred Stock”), and second (b) upon the First Effective Time, from(i) US$111,000 divided into 100,000,000 shares of New Mondee Common Stock, 10,000,000 shares of New Mondee Class B Common Stock, and 1,000,000 shares of New Mondee Preferred Stock to (ii) US$111,000 divided into 750,000,000 shares of New Mondee Com- mon Stock, 250,000,000 shares of Class C common stock, par value $0.0001 per share (“New Mondee Class C Stock”) and 250,000,000 shares of New Mondee Preferred Stock be approved.CONTROL NUMBERSignature Signature, if held jointly Date , 2022Note: Please sign exactly as name appears hereon. When ordinary shares are held by joint owners, both should sign. When signing as attorney, executor, administrator, trustee, guardian, or corporate officer, please give title as such.