What is the conversation about?

W: Excuse me, Mr. Smith.
M: Yes?
W: Could I possibly take the day off tomorrow?
M: Hmm. I don’t think so.
W: I see. Uh the reason I asked is my baby is going to the hospital tomorrow for a regular check and my husband is on a business trip.
M: Oh, I understand. Well, in that case, I suppose you can take the day off tomorrow.
W: Thank you very much.