Four years ago we were scheduled on AA going to Fort Lauderdale for a few days and then continuing on to Paradise Island in the Bahamas. I suddenly got notified that the flight we were on from FL was cancelled and we were rescheduled on a different flight a full 6 hours later. I did some research and found there was a flight on Continental in the morning and the price was right. I called an AA supervisor and they booked me on the short Continental flight so I got there as originally scheduled. They were wonderful about accommodating us.