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:     Lisa , I'm so glad to see you . How are you doing ?  
 Person2:  Fine . I miss you so much , uncle Benjamin .  
 Person1:      Me too . We haven't seen each other for years .  
 Person2:  It's been 3 years now .  
 Person1:      How time flies ! Now you are a college student out of a little girl .  
 Person2:  How is aunty Shirley ?  
 Person1:      Couldn't be better .  
 Person2:  How has May been ?  
 Person1:      She's been good . She is in grade one in Joy Chain high school . And she dreams to be a volunteer in 2008 . 

1