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 did you get it ? 
 Person2:  I found it a garage sale once . 
 Person1:      What a find ! So , how much does it cost ? 
 Person2:  Well , because I like you ... ninety bucks . 
 Person1:      Ninety dollars is pretty steep . I'll take it for sixty bucks . 

1