at LeCellier, just show up with 5 and say 2 couldn't make it. Norway takes a CC with the ressie, so I don't know what happens if you show up with only 5. I don't have any experience with that situation. I'm sure someone here does though.
I totally agree! Adding people, you'd have a problem. But subtracting people, just tell them when you show up that a couple decided to stay back at the room.