I had to rebook an Executive Rewards miles ticket for my mom and I. When the TAP booking agent went to move my ticket over to the new date, the award availability had already gone...

Does anyone have any idea of how often award availability opens up for TAP? I need to book on a specific date, and I don't want to do the miles and cash booking, because the miles don't have much value that way (I'll do it if I have to).

That being said, any advice would be greatly appreciated on how to navigate this situation.

Thanks!