Reservations made on Delta. We purchased two aisle seats in economy. Air France changed equipment and changed our seats, but neither Delta nor Air France notified us. One aisle seat disappeared, and we were seated as a couple together. We only learned this at check-in another city, and they were unable to make a seat change, claiming Delta personnel cannot see Air France seating on their screens.
We paid for and wanted aisle seats. If there is an equipment change on Air France, the policy is to give one passenger an aisle seat and to seat the second party next to that person, not on an aisle. Beware of equipment changes.
We had a difficult time with a desk clerk at DTW who would not change the seat, though able to see what was available on the screen. The supervisor finally helped us in a kindly fashion.