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:     When can we expect you and your daughter for dinner ? Next Saturday ?  
 Person2:  Next Saturday ? I ’ m sorry . I ’ Ve promised to go to a Chinese Opera with my daughter .  
 Person1:      How about Sunday then ?  
 Person2:  Yes , Sunday sounds fine . What time ?  
 Person1:      Does 6,30 suit you ?  
 Person2:  It suits us fine . We ’ ll see you then .  
 Person1:      Thanks , goodbye . 

1