Why is the man pleased?

M: Ms. Compton, I’m so happy with the outstanding meal you prepared. I was wondering if you would be interested in catering our shareholders’ meeting in December.
W: Thank you, Mr. Wilder I’d be happy to, but I’m usually very busy around the holidays. I need to make sure that I’m not already booked. When exactly is your meeting?
M: We always host our annual meeting on the first Tuesday of the month at our headquarters in the city.
W: Most of the parties that I cater are on weekends, so that should work. I’ll check my work calendar first and let you know.