When booking a reward flight, can I book my ticket with my miles and then my wife's ticket with her miles on the same phone call? Would they need to speak to her? Or if I answer the security questions will I just be able to do it? If I can't book my ticket and my wife's ticket in the same call, what happens if I get one ticket but not the other? Do I start the process over? Also, if I have multiple flights and multiple tickets through different airlines (AA, UA, BA), what happens if the award flight you looked up online is not available (or the agent can't get you on that flight) and it has a chain reaction on the other flights. I have never booked a trip with reward tickets, but I just imagine booking three portions of a four portion trip, and then the fourth portion is unavailable making the first three have to change. I hate "what if" questions but I want to be prepared.