I am getting very frutstrated with BA.com. AA changed the departure time on a LAX-DFW flight that I have award bookings for, to one of the last flights in the evening, something that does not suit me at all as I will arrive in the middle of the night. When I try to change to a more suitable time, BA tells me there is no availability. AA have something like 20 daily flights on the route, several of the flights are with wide body equipment. I find it hard to believe that there is no seats available on a earlier flight on a tuesday in november.