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:     Hot in here , isn't it ?  
 Person2:  Yeah , really .  
 Person1:      Is it Ok if I sit here ?  
 Person2:  Of course . Suit yourself .  
 Person1:      Thanks . My name's Bill Peters , by the way .  
 Person2:  Hi , I'm Susan Jackson .  
 Person1:      Nice to meet you . And what do you do , Susan ?  
 Person2:  I'm a student at UCLA .  
 Person1:      Oh , are you ? And what are you studying ?  
 Person2:  Medicine .  
 Person1:      Really ?  
 Person2:  Yes , I want to be a doctor one of these days . What about you ?  
 Person1:      I'm an engineer , I work for Boeing . Say , would you like a drink ?  
 Person2:  Sure . Thanks . 

1