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 . What's the time difference between Beijing and San Francisco ?  
 Person2:  16 hours . Beijing is 16 hours ahead .  
 Person1:      Are we losing or gaining a day on the way to America ?  
 Person2:  We are gaining a day .  
 Person1:      So does it mean we're arriving on the same day ?  
 Person2:  That's right . 

1