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 may I help you ?  
 Person2:  I want to return this video .  
 Person1:      Is that all you need ?  
 Person2:  I also need to check this magazine out .  
 Person1:      You ’ re not allowed to do that .  
 Person2:  I don ’ t understand .  
 Person1:      It ’ s our policy .  
 Person2:  What can I check out ?  
 Person1:      Only books or videos .  
 Person2:  I need this magazine .  
 Person1:      You will have to read it here .  
 Person2:  That ’ s weird . 

1