I have a Caribbean cruise booked and I asked for BA flights to and from Miami as I have a very good friend who upgrades me whenever possible. The cruise company usually book me on BA207 ex LHR at 09:40 but this time they said it had a AA flight number but it was a BA plane with BA crew. Now, I have looked at all the timetables,and the only flight I can find at that time is shown as the BA207. What I am concerned about is that if it has an AA flight number,she may not be able to upgrade me. I can't ask her because she is away but I would like to know in case I have to change my flight. Thanks for any comments.