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's wrong ?  
 Person2:  You !  
 Person1:      What are you talking about ? What did I do ?  
 Person2:  You told Martha that I was on a date ? What was that all about ?  
 Person1:      No ... that's not what I meant . I didn't mean that . She asked me where you were and I jokingly said that you were on a date with Sara . I thought Martha knew that you and Sara were just friends .  
 Person2:  She started feeling suspicious after you said that .  
 Person1:      I'm sorry man . I didn't know . I didn't mean to screw anything up .  
 Person2:  Martha gets jealous easily and it took a while to convince her that Sara was just a friend . Now , I have to explain to Sara that I can't hang around her because of you .  
 Person1:      Look . I really didn't mean to , and next time I see Martha , I'll really tell her that you and Sara are really just friends .  
 Person2:  Don't bother . 

1