Where does the conversation take place?

M: Well, we'll certainly stay here again next time when we're passing through !
W: Good ! Do let us know in advance. And we'll try to get you the same room.
M: That would be lovely. It may be quite soon in fact.
W: Oh, how's that?
M: Well, we're driving to the south of Spain in the next couple of days and we may come back this week.
W: Do give us a ring if you decide to. I hope you'll have a pleasant trip.