Originally Posted by nologic

Since when does "the industry's accepted language" trump basic English?

At best, it is highly ambiguous, and in this case, I think the customer wins.

At worst, it says you just have to be flying on a fight which is marketed by AA: it does NOT say you personally have to be ticketed on AA on that flight.

If somewhere in this promotion it says the following:

"the definition of 'flying on an AA marketed flight' means that the passenger himself/herself must be booked on such flight on AA," then I agree with you. Maybe that definition is hidden somewhere???

Otherwise, in plain English, I was flying on an AA marketed flight even though I myself was not booked on AA on that flight.

So, in plain English (which perhaps is different from "the industry's accepted language"), I qualified for the promotion in terms of the wording of the promotion and I booked/ticketed this specific flight, influenced by the promotion and this wording fully expecting for my booking to qualify.

I can not be held to a standard of interpreting an "industry's accepted language."