HOWEVER, it IS the owner's fault that she NEVER checked on the dog inflight! She NEVER attempted to bring the dog down under the seat after takeoff. SHE was responsible for the dog. She even admitted later that she was distracted by her infant.
THE OWNER was responsible. SHE was the one who decided she could take care of 2 kids AND a dog on the flight. It was obviously beyond her capability in the end.