Excuse me , sir.You are not supposed to smoke here .   I beg your pardon ?   Your seat is in the non-smoking section.So , please refrain from smoking .   Oh , I see.Since I'm a heavy smoker , may I change my seat ?   Then , I'll try to find a seat in the smoking section.One moment , please . Thank you for waiting . I found a seat in the smoking section for you .   Oh , did you ? Thanks a lot . 