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 over the weekend , Sara ?  
 Person2:  I'm planing to go bowling tonight . Tomorrow I was hoping to see a movie . What about you ?  
 Person1:      I want to go camping , you know , just get a way for the weekend . I'm not sure I'll be able to , though .  
 Person2:  Why not ?  
 Person1:      Well , I have a lot of work . I'll see how it goes . 

1