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 that Mr . Green ?  
 Person2:  This is him speaking .  
 Person1:      I am calling to inform you that we're happy to have you with us . Welcome aboard , I'm sure your friend would have given you a lot of information of our school and its motto , ways of teaching , etc .  
 Person2:  Yes . I am very glad to have the chance . 

1