We arrived in Houston and inside the airport we went fast to the train ended checking back in (take off your shoes, etc.) and try to go to our transfer gate (we got a ride with those drivers - easy job driving people around) - we were totally late and thought we'd miss the flight... the plane was supposed to take off at 9:05pm and we got there at 9:20pm - we made it, the place was still there (it was being serviced!) we were the last ones in! What luck! We had already been booked in a hotel....