Elsa realized that Luke was a regular customer at this place and that he wasn't short of money.
Few American restaurants had private rooms. What Luke described as a separate dining room was rare, too.
It was possible to enjoy better service at a higher service fee, like the different classes on a plane.
However, restaurants weren't expected to provide 'private rooms,' which would be discriminatory and unfair to the other customers.
Donald had never eaten here before, so Elsa helped him order.
Luke, on the other hand, ordered for Selina. After all, he could always finish the food that she didn't like.
If Luke was full, he could still pack up the food for Dustin.
After the food was served, they stopped talking and ate first.
It wasn't until they were full that they chatted over their drinks.