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 this your umbrella , miss ?  
 Person2:  Oh , yes , it is . Thank you . I was looking for it just now .  
 Person1:      You look a bit familiar to me . I wonder if I have seen you somewhere before .  
 Person2:  Have you ?  
 Person1:      May I ask where you live ?  
 Person2:  Just two blocks away , in that tall building .  
 Person1:      That ’ s it . I live there , too . I live on the sixth floor .  
 Person2:  My family move in just two weeks ago . We live on the fourth floor .  
 Person1:      It ’ s a small world ! May I know your name , miss ?  
 Person2:  I ’ m Chen Ming .  
 Person1:      How do you do , Miss Chen ? I ’ m Song Mei .  
 Person2:  I ’ m glad to meet you , Mr . Song .  
 Person1:      Are you going to your office now , Miss Chen ?  
 Person2:  No , I ’ m going to the airport to meet some friends from Beijing . 

1