Why has the couple come to the restaurant?

W: Are you sure we can afford to eat here? It looks so expensive.
M: Don’t worry about it. It’s our anniversary, and we should celebrate.
W: You’re right. We deserve a great meal to celebrate.

W: The subway is running behind schedule and the traffic is heavy. I don’t know if we’ll make the 7:30 show.
M: It’s a beautiful night. Let’s try to get there on foot.
W: Are you kidding? If we go there on foot, we won’t have time to have dinner.
M: Well, we can make do with sandwich.