This still doesn't add up. Let's look at an example. Assume a restaurant has five tables that hold 6 people; ten tables that hold 4 people; and six tables that hold 2 people. That is a total of 82 chairs. The restaurant does not take reservations for an open seating lunch based on 82 chairs because the only way to fit exactly 82 people in the restaurant at any one time is if all the tables for 6 were occupied by 6 people, and all the tables for 4 were occupied by 4 people, and all the tables for 2 were occupied by 2 people. And it would be a whale of a coincidence for this to happen. Or, I suppose, the restaurant could fill up by having the restaurant owner separate the last groups to arrive and place diners into empty seats, sort of like a "single rider line". And we know that this does not happen. So the more likely scenario is that three of the tables that hold 6 actually have 5 people sitting at them, and the other two have 6 people. Seven of the tables that hold 4 people have 4 people seated at them and the others have 3. And five of the tables for 2 have 2 people sitting at them and the other table holds a solo diner. Under this scenario, the restaurant is "booked to capacity" but only has 75 people in it. So the question then becomes: Can a restaurant that holds 82 people, but currently has only 75 in it, seat a fourth person at a table for four that only has 3 people seated at it? And the answer is yes. Assuming that it wants to. It can always say "No" just because. But Disney rarely does that. "No"=lost revenue. And when has Disney every agreed to lost revenue?