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:     Come in , come in , what can I do for you ?  
 Person2:  Professor Donald , are you giving your advanced geology course again next semester ?  
 Person1:      Yes , I am applying on it .  
 Person2:  I wonder if I could enroll in it . I know it is a graduate course and I ' m a junior , but ...  
 Person1:      Aren't you a bit young ? I have a lot of qualified seniors to take the course and they usually have a hard time keeping up .  
 Person2:  I know , but geology of the American west is my major interest and I have done a large reading in the field .  
 Person1:      Well , if you think you are ready , I'll let you enroll .  
 Person2:  Oh , thanks , professor Donald.this is very nice of you . 

1