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:     So Emily , do you still want to see a movie together this weekend ?  
 Person2:  Well , what do you want to see ? I don't think there are many good movies out right now .  
 Person1:      Mmmm ... I know ! We can go to a really bad sci-fi movie and sit in the back of the theater and make fun of it . What do you think ?  
 Person2:  Now that's a great plan . It's a date ! 

1