Why can’t they meet on Thursday?

M: I’d like to talk to you about our next building project. Can you fix meeting for this week? What about Thursday?
W: Well, I’m sorry. I’ve been extremely busy this week. I’ll be at meeting all day on Thursday. And I’ m going out of town on Friday. I Wednesday all right?

W: Well, this must be the National Library.
M: I guess so. Oh no! I don’t think it’s open today. Look. It says "Closed Tuesdays".
W: Well, we’ll just have to come back tomorrow.
M: But we’re supposed to go on that tour tomorrow.
W: Oh, that’s right. I forgot all about it. How about the day after tomorrow then?
M: It’s OK with me.