My husband is the king of asking for a different table. When we go to a restaurant I make sure he goes into the dining room first because he is much pickier than me. He won’t sit in t(e middle of a room, next to a kitchen or a door. Or if the table is too small. If taken to that kind of table, he always says ...what about that one, pointing to another empty table. And invariably we are moved. I have asked a few Times for another table if I’m by myself or with the kids, I tend to be a little friendlier than my husband but again, rarely get turned down. It never hurts to ask.