I talked to WDW DINE this week, and the CM said that tables for 5 are few and far between. I was reserving for Thanksgiving week, and he didn't have one available. He cheated and put us at a table for 4 then noted a highchair. Our smallest can use a highchair, and she's not going to touch food anyway. He made it clear that other CMs probably wouldn't do that, and that if the call got monitored he'd get scolded. Our other option was to split into a party of 3 and a party of 2 -- no thanks. Good luck getting a bigger table. I think I'm going to call back and just double check if one has opened tomorrow.