I've just booked a flight with United from New Orleans to New York. As part of the purchasing procedure, it asked me to select seats. I did this. I then received my confirmation email which just had -- against our seats.
I logged into the United website and tried to re-assign our seats only to be told that "! Advance seat assignments are restricted for this flight. Please select a seat during check-in."
Is this a normal United policy? Why was I allowed to select seats in the first place? If seats can't be assigned then why are there some seats greyed out (unavailable) on the seat selection page?