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:     Thank you very much for everything you have done for me during my stay in China . 
 Person2:  And I must thank you again for your generous help . 
 Person1:      The help is mutual . I must thank you to see me off . My wife and I will be looking forward to seeing you . You will come to see us , won't you ? 
 Person2:  I promise I will take the first chance to call on you . Please send your wife with my best regards . 

0