What does the man want to do?

M: Good evening. My name is Tom Smith, may I know your name?
W: My name is Mary Classon.
M: Mary, would you care to dance?
W: I’d love to, but I have to be off with something important to do.

M: Laura, I ran into David today.
W: Really? Did he say anything about his sister?
M: Yes. She should be leaving London very soon because her husband has taken a job in Paris.