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:     Mary ! I haven ’ t seen you since our dinner with Mr . Lee last week . Where have you been hiding yourself lately ? 
 Person2:  Oh , hi Mike . I ’ Ve been out of town the last few days . What did you need ? 
 Person1:      Really , nothing big . I just heard about your ideas on employee motivation and I wanted chat with you about a few things going on in my department . 
 Person2:  Well , feel free to drop by my office any time . The door ’ s always open . 
 Person1:      Actually , I was hoping to mix business with pleasure . Would you be interested in joining me for dinner some time this week ? I thought we might try out the new Italian restaurant everyone ’ s been 
 Person2:  Sure , Mike , I ’ d love to . 
 Person1:      Is this evening too soon ? 
 Person2:  No , that ’ s perfect . We can leave directly from here . 

1