Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     Hello , Dora , I haven't seen you for a long time . Where have you been ?  
 Person2:  I didn ’ t go anywhere . I stayed at home .  
 Person1:      What's up ? You look unhappy .  
 Person2:  Nothing . I just feel very lonely in this city . I miss my family .  
 Person1:      Oh , I know . Sometimes I have the same feeling with you . But you'd better not be so emotional .  
 Person2:  Can you stay and accompany me for a while ?  
 Person1:      Sure , no problem . You can call me any time you are alone from now on .  
 Person2:  Thank you so much . You are so sweet .  
 Person1:      Not at all . We are friends . 

1