I'm in the US at the moment and need to change the date of an AA flight on my AA-issued DONE4. So I assume I need to call AA to do this. But the RTW desk is closed at the moment and I'm concerned the available D inventory will go before they open tomorrow morning. AA Reservations say they can't do anything -- either change the reservation or create a new reservation to hold the seats. Is this so? Do I have any other options other than waiting the 9.5 hours until the RTW desk opens?