[speaker001:] Excuse me. Is anyone sitting here?
[speaker002:] No, nobody.
[speaker001:] You don 't mind if I smoke, do you?
[speaker002:] Well, to be frank, yes, I do.
[speaker001:] Oh, I 'm sorry. But this isn 't a no-smoker, isn 't it? I mean would you mind if I smoke here?
[speaker002:] Actually it is. Perhaps you haven 't noticed the sign.
[speaker001:] Sign? What 's sign?
[speaker002:] There, on the window.
[speaker001:] Oh, sorry. I didn 't notice it. Sorry.
[speaker002:] That 's all right.