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:     Do you like flowers ? 
 Person2:  Of course , I like flowers . 
 Person1:      What's your favorite flower ? 
 Person2:  I like peach blossom , because I like spring . 
 Person1:      Peach blossom is really beautiful . 
 Person2:  Yes . How about you ? 
 Person1:      I like lotus . 
 Person2:  You have a perfect taste ! 
 Person1:      But there aren't any lotus now . 
 Person2:  Yes . It's snowing outside . Let's enjoy the plum blossoms . 
 Person1:      That's not bad . Let's go . 

1