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:     Jack , what are you doing ?  
 Person2:  I am reading .  
 Person1:      I can see that . But why are you reading advertisements for houses for sale ? Are you buying a house ?  
 Person2:  No , not yet . But I like to see what is available .  
 Person1:      Can I have a look as well ?  
 Person2:  Of course , have a seat .  
 Person1:      Oh , this one looks really good . And look at the garden . So beautiful .  
 Person2:  Yes , nice . But I prefer this wooden house with a garden fence and a sloping roof .  
 Person1:      Yes , but my house has large windows and so gets lots of sun . And it has a small balcony at the top .  
 Person2:  Well , you can't compare a small balcony to this large veranda . This is perfect for having a barbecue in summer .  
 Person1:      Talking about a barbecue , didn't you say you are organizing one next week ?  
 Person2:  Yes , next Saturday . I hope you can make it . 

1