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:     How do you like this one ? It's nice and cheap It's only thirty-four dollars . 
 Person2:  Have you got anything cheaper ? 
 Person1:      Sorry . I think that's the cheapest 
 Person2:  May I try it on ? 
 Person1:      Yes . you can The fitting room is right over there . 
 Person2:  All right . I think I'll take it . 

1