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 free on Friday evening because we were wondering if you would like to come round for dinner ? 
 Person2:  Oh , thank you very much . I ’ d like to come , but I ’ m afraid I ’ m busy that evening . 
 Person1:      That ’ s a pity ! Then when would it be a good time for you ? 
 Person2:  Well , I ’ m not too sure , actually . I ’ Ve got a lot going on the next couple of weeks . Why don ’ t I call you later ? 
 Person1:      Okay , that ’ s fine . 

0