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:     Is that your phone ? 
 Person2:  Yes , it's my new business phone . Do you like it ? 
 Person1:      It's very impressive . Can you use the Internet on your phone ? 
 Person2:  Yes , it's got wireless Internet access . 
 Person1:      That's really convenient . Does it have the Bluetooth ? 
 Person2:  Yes , but I don't really use it often . Have you ever used it ? 
 Person1:      No , but I think it'd be really great for people like you who are always on the go . 
 Person2:  Yes , I guess I should try to use it . 

1