My husband and I had plans to go to San Antonio from chicago last weekend. We were on a full plane but because of machanical difficulties, we had to change planes. The second plane was a bit smaller and the gate agent asked for 2 people to be bumped for a $500 voucher and the next flight out, which was 8 AM the next morning on a United flight. My husband and I decided to take them up on the offer, after all, we'd just be loosing a few hours. The gate agent was very nice and very quick and got us info and vouchers for the 8 AM flight and a hotel voucher. The next morning at the United counter we were told that we had not been confirmed on that flight and that there were no seats left. They sent us back to the American counter. The customer service person said that the gate agent had not waited an extra 60 seconds to make sure that the flight was confirmed and the only way she could get us to San Antonio was with a layover in Dallas, getting us there at 5 pm on Friday afternoon. This was unacceptable to us since we were returning home noon on Sunday. She was able to give us a voucher for the full amount of our ticket. I am mad that I lost out on a wonderful weekend with my husband in a city that we love. I have e-mailed AA what happened but have yet heard from their customer service department. What are my changed at some type of compensation for my lost vacation? If I had any idea that this could possibly happen I would have NEVER given up my seats. Any suggestions as to a better way to contact AA other than the e-mail via their website?