Where does this dialogue take place?

W: Yes, sir. You rang?
M: Yes, I wonder if you could bring me another martini.
W: Certainly. Would you like anything else?
M: Well, I suppose this is kind of foolish, but my son-in-law is supposed to meet me in London at the airport. Do you think he’ll be able to find me?
W: I’m sure he will. You don’t have to worry about that. Are you going to be visiting him?
M: Yes, I’ve never seen my grandson. In fact I’ve never seen my son-in-law, either.
W: I think you’ll have a wonderful time in London. It’s beautiful. Is this your first time abroad?
M: No, I saw quite a bit of Europe before. Rome, Berlin, Paris, places like that, but never London.
W: Oh, then you have flown before, too.
M: No, that was during the Second World War and I went on a troopship.
W: Things are quite different in Europe nowadays.
M: Fm sure they are. I’m really anxious to get there.
W: Well, it’s 4: 00 now and we’ll be there at 6: 00.
M: I plan to stay five weeks. I was a teacher but I’m retired now. My wife is dead so I can go where I want when I want.
W: I think you’re going to have a good time. And don’t worry about being met.  I’ll bet your daughter will be there, too.
M: I hope so, but I don’t know if she will.
W: I’ll go to get your martini for you. Be back in a minute.