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:     Can I make preservation now ?  
 Person2:  Sure . At what time ?  
 Person1:      9:45 , please . We want a table next to the window .  
 Person2:  I am sorry , sir . We are booked until 9:10 .  
 Person1:      In that case , please help us reserve a table for 4 at 9:00 . 

0