[jimworcs]

There is something very odd about this story. It is ridiculous to that the tickets were being sold separately. I would consider a small claims court. If they took your money for the tickets when the second transaction went through, I think they are in breach of contract. You did not contract them to take her to DFW, but rather to Philly. Unless you booked each transaction as a separate booking?

ChrisH is right. They do not care. The fig leaf of competition is created by the "de-regulated market". In fact, they are a series of monopolies and duopolies in huge fortress hubs. For this reason, they are quite willing to exploit people, even those with cancer, to increase their profit. You should also contact the local media with this story. Outrageous.