I am on AE flight 5643 tomorrow the 18th. I was wondering how I can find out or if I can find out if this is over sold. It is currently Y0 and the seat selection guide online is full. I am concerned b/c this was an equipment change from a 50 or so seat AE flight to a 30 seater...to make matters worse this will be the last flight I can take that would allow me to catch the last flight of the night to my destination to STL. Do I have and 'rights' in this situation? I am confirmed in seats 17abcd on a 10 row plane...help!