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 , Ann ! Is that you ?  
 Person2:  Yes , it is . Hi , Tom ! It's a real surprise to see you here .  
 Person1:      It's been a long time ! What's new ?  
 Person2:  Nothing much . What about you ? Is everything going well ?  
 Person1:      Not bad I guess . I just got back from Hawaii .  
 Person2:  How was it ?  
 Person1:      I had a good time . You seem to be in a hurry . Don't let me hold you up .  
 Person2:  Sorry , I've got a meeting in half an hour .  
 Person1:      Ok , I won't keep you then .  
 Person2:  Great ! It's good to see you . Goodbye !  
 Person1:      Yes , stay in touch . Bye !  
 Person2:  Give me your email , would you ?  
 Person1:      Sure ! It's txyb@gmail.com . 

1