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:     How much do I have to pay ? 
 Person2:  $ 70 , madam . 
 Person1:      Here you are . Can you put the bread in a separate bag ? 
 Person2:  OK , here is your change . 

1