If you can purchase your ticket starting in CAI without going to CAI. Can you then not have your travel agent purchase it for you ex CAI and then pick it up at a later date while in CAI? I do not see any difference other than having a middle person you trust making shure you get what you want and your money goes into the right hands. You give them the money they buy the ticket you pick it up. Is it any different than having a friend purchase a ticket for you? I mean if you know the agent really well isn't there some sort of loop hole?