My mom booked a reward ticket and I think she might have made a mistake: Let's say my mom was called Adrian (First Name) Pennino (Middle Name) Balboa (Last Name). The passport she uses says: - Last Name: Balboa - Given names: Adrian Pennino Now during booking on UA.com, she did the following: - Last Name: Balboa - First Name: Adrian - Middle Name: Pennino Now the ticket says: Booked for Mrs. BALBOA Adrian I was under the impression that (new?) rules for US-bound flights dictate that each first name appearing in the passport would need to appear on the ticket, in my moms case: Booked for Mrs. BALBOA Adrian Pennino. Usually when I do the arrangements, I make sure to book the ticket like in the latter example. This is why I'm now asking if the way she booked the ticket will cause problems at check-in.