Concourse Steak 9/21 Reservation

[pinkerbell]

We have added another day to our vacation, we are now arriving the night before our Concourse Reservation and would like to make it earlier, it is for 5:30. Is there anyway to swap a reservation if someone with an earlier wants a later? If we get there earlier, what are the chances they may be able to seat us earlier? This is a MNSSHP night, so I'm thinking not good, but thought I would throw this our there.