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:     Excuse me.Where do I register ?  
 Person2:  Oh , over there in Pacific Pavilion .  
 Person1:      Is that the large , white building ?  
 Person2:  Yeah , that's it .  
 Person1:      Thanks . 

1