Person A used his Aadvantage account to reserve an award ticket for Person B. The ticket is on "hold." Person B realized that he has enough miles in his own Aadvantage account for the award ticket, but there are no more award seats available for the flight. Is there a way for Person B to ticket the seat using his own miles but also using the current on-hold reservation under Person A's account? (Person B is not changing the name on the award ticket that's on hold. Instead, Person B wants to use his own miles for the ticket and not Person A's miles.)