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:     Welcome , sir , what can I do for you ?  
 Person2:  I want to buy some records .  
 Person1:      Whose record do you want ?  
 Person2:  Are there the records of Michael Jackson ?  
 Person1:      His records have been sold out . The new copies will be available next week .  
 Person2:  Oh . it's too late . Maybe I should go to other video stores to have a look . 

1