answer: #Person2# asks #Person1# why #Person1# does not quit smoking. #Person1# had tried but failed.
documents: #Person1#: Do you want a cigarette? 
  #Person2#: No, thank you. I've given up, you know. 
  #Person1#: You don't mind if I have one. 
  #Person2#: Well, all tight. But you know , smoking does do harm to your health. 
  #Person1#: Yes , you are right. 
  #Person2#: Why don't you try and give it up? 
  #Person1#: I've tried to give up smoking several times , but it's no use.