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:     Are you doing anything tonight ?  
 Person2:  No , nothing . Why ?  
 Person1:      Do you like western music ?  
 Person2:  Yes , I do , very much .  
 Person1:      There ’ s a concert tonight . Would you like to go and listen to it ?  
 Person2:  Oh , yes . I ’ d love to . 

1