Last night I flew with a friend from MCO to JFK.

I was originally in 3D and my friend had 3F at the time we booked our tickets (separate reservations).

When we checked in, we were assigned 1F and 6D. The agent did not know why our seats were switched and we could not move b/c the flight was 100% full.

Does anyone know why they would change our seat assignments like that? There were 3 old ladies sitting in row 3 in our original seats. The lady in 3D did need Wheel Chair assistance but why couldn't they have given her 1F or 6D??