American Airlines pilot Celeste Pasqua Pearce knew it was going to be a rough start to the holiday travel season. On a flight over the long Thanksgiving weekend, a flight attendant took away a first class seat from a toddler traveling with his parents. The parents had paid for the seat, but the flight was oversold and the flight attendant was looking for any way to fit more passengers on the plane. She didn’t even ask; she just told the parents she was taking it. Luckily it was a short haul: John F. Kennedy Airport to Miami International Airport. But…