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:     Have you made a reservation ? 
 Person2:  Yes , I have booked a table for four . My name is Liu Fan . 
 Person1:      We have had a window table reserved for you . This way , please . 
 Person2:  Thanks . 
 Person1:      You're welcome . 
 Person2:  Can we see the menu , please ? 
 Person1:      I'll bring it over . 
 Person2:  Anything good for this evening ? 
 Person1:      We have squirrel shaped mandarin fish , seeds prawn , etc . 
 Person2:  Very good , we'll take them all . 

1