Originally Posted by
3544quebec
Himeno that is the same error I got when trying to book through AA from CPT (1st segment CPT-LHR on AA-coded BA-operated flight with direct connection to DFW on AA). It took all my details and went kaput at the last step. I wonder if there is a pattern of errors occurring with booking through AA when the 1st flight is not a simple AA flight?
I also had the same error with an itinerary but it mysteriously went away when I booked it over the net in Canada. Subsequent attempts to book a second ticket with the same itinerary kept failing with the same error. Alas I wasn't able to return to Canada or find a working Canadian proxy to see if it was down to the IP address.