W: Excuse me, Sir, you are not supposed to smoke here.
M: I beg your pardon.
W: Your seat is in the non-smoking section, so please refrain from smoking.
M: Oh, I see, since I'm a heavy smoker. May I change my seat?
W: Then I'll try to find a seat in the smoking section. One moment. please.
( a few minutes later)
W: Thank you for waiting. I found a seat in the smoking section for you.
M: Oh, did you? Thanks a lot.