Dinner seating started at 5 for AG and I think it is the same for WCT. Depending on what time your meal ressie is for depends on which show time you get a FP for. When I called to book she offered me 2 time blocks to eat and they corresponded with the show times.
If you want to do a lunch, you would have to order the picnic basket, which would give you a different seating location.