I need to book 2 passengers on an AA flight via BA. The flight I need only has 1 award ticket left, but there is another flight earlier in the day with award availability (which I absolutely can not use). It was suggested to me that I should book 1 pax on each flight and then sdc from the earlier flight to the later one for the 2nd pax. I checked regular availability for that later flight, and there's at least 6 seats available.
1. The earlier flight is at 8:50 AM, can I already call to sdc the night before?
2. What happens if there are no seats available on the later flight? Would I be able to cancel both tickets and get refunded, or would it be too late for that?
3. Are there any fees to sdc an award ticket? AA.com is a bit ambiguous on this.
I have zero experience with sdc so any help would be appreciated. I had originally posted in the award ticket thread, but this seemed like a better place for my followup. Thanks.