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:     Hi , my name is Pete . You are Ann . Isn't that right ?  
 Person2:  Hi Pete , how do you know my name ?  
 Person1:      Do you see that girl in the red top ? She told me who you were .  
 Person2:  Oh Andrea , the Spanish girl ?  
 Person1:      Yes , that's her .  
 Person2:  I met her last week at a party . Anyway , you must be from the United States ?  
 Person1:      Actually I live in London , but my family lives in Seattle .  
 Person2:  Oh , I am from London as well .  
 Person1:      Where in London do you live ?  
 Person2:  In Wimbledon - quite close to the tennis courts actually . Which is very nice because I love tennis .  
 Person1:      I play tennis there every week . Shall we have a game one day ?  
 Person2:  That would be lovely . But now let's go and get a drink . 

1