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:     What are you calling about today ?  
 Person2:  I scheduled a delivery for tomorrow .  
 Person1:      Is there a problem ?  
 Person2:  I would like to reschedule .  
 Person1:      That shouldn't be a problem .  
 Person2:  Can I have it delivered the day after tomorrow ?  
 Person1:      So , you want it delivered the day after tomorrow ?  
 Person2:  Yes , will that be possible ?  
 Person1:      What time would you like us to deliver it ?  
 Person2:  Is 2:30 Okay ?  
 Person1:      Your delivery has been confirmed .  
 Person2:  Thank you , and I'm sorry for the change of plans . 

1