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:     Will you have time this Saturday evening to go to the cinema with me ?  
 Person2:  Saturday ? Oh , I have a previous engagement .  
 Person1:      What a pity ! Then how about Sunday ?  
 Person2:  I've already got plans , too .  
 Person1:      Then when do you think we could go out together ?  
 Person2:  How about Friday ? Only in that day can I arrange it .  
 Person1:      OK . Any time on Friday will be OK with me .  
 Person2:  That's settled then . I'll contact you later . 

0