Where does the conversation probably take place?

W: Good morning. Can I help you?
M: Yes, please. I would like to know about the courses at this evening school.
W: Is that a summer course you’re interested in?
M: Yes.
W: Well, we have short full-time courses during the summer.
M: Mm-mm, I would like to know how long one course lasts.
W: Yes. Each course lasts three weeks.
M: How many hours per week, please?
W: It’s about twenty-three hours a week. Usually four and a half days each week.
M: You must have a lot of students in the class, haven’t you?
W: We have a lot of students in the school, but in the classes only between twelve and fourteen students.
M: Could you please give me the dates of the first and second courses?
W: Yes, certainly. The first course begins on July 3 and lasts until July 20 and the second course is from July 24 until August 10.
M: OK. Thank you very much.
W: You’re welcome.