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:     What are you doing for Christmas this year ?  
 Person2:  All my relatives are getting together at my house .  
 Person1:      That's great . M OST of my family is coming home too .  
 Person2:  Who can't make it in your family ?  
 Person1:      My sister.She is going to her in-law's house this year .  
 Person2:  That's too bad . So , what did you ask for Christmas this year ?  
 Person1:      I asked Santa to bring me a new sweater and some computer games .  
 Person2:  I want some computer games also . I gave my parents a really long Christmas list .  
 Person1:      I hope that I get what I asked for .  
 Person2:  So what does your family do on Christmas Day ?  
 Person1:      We wake up early and go to church.Then we come back home and open our gifts together . How about you ?  
 Person2:  Our family is a little different . We go to church on Christmas Eve instead . 

1