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