Where does this conversation take place?

W: Lovely weather!
M, Yes, it’s really warm.
W: I’ve seen you before, haven’t I?
M: Well, you may have done. I’ve been here once or twice, for a walk in this quiet park. Do you live near here?
W: Yes, I live in one of those flats over there. What about you?
M: Oh, I’m staying with a family down near the station.
W: Are you on holiday?
M: Well... er... I’m here to improve my English. I’m from Greece, you see.
W: I didn’t think you were English, but your English is very good.
M: Thank you very muck