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 help you ? 
 Person2:  Yes , I'd like to change some money to cover my expenses here . What's today's rate of US dollar against the RIB yuan ? 
 Person1:      Let me see , the buying rate is RIB 808 per $ 100 . How much would you like to change ? 
 Person2:  $ 200 altogether . 
 Person1:      Would you mind showing me your passport ? 
 Person2:  Here it is . And how much RIB shall I get ? 
 Person1:      Let me see . $ 200 makes RIB 1,616 . Here is the cash and exchange memo . Please check it . 
 Person2:  That's correct . Thank you very much . 

1