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:     Thank you for calling ABC Company , may I help you ?  
 Person2:  I ’ m Liu Yi . I ’ d like to speak to Mr . Smith .  
 Person1:      Sorry , we have two Smiths , Robert Smith and James Smith , which one would you like to speak to ?  
 Person2:  I ’ d like to speak with Mr . Robert Smith .  
 Person1:      He is on the line . 

0