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:     Simon , may I introduce you to Linda ? You don ’ t know each other , do you ?  
 Person2:  No . I ’ Ve not had the pleasure of meeting her yet .  
 Person1:      How do you do ? I ’ m pleased to meet you .  
 Person2:  How do you do ?  
 Person1:      Please sit down . Help yourself just like you are at home .  
 Person2:  What would you like to drink ?  
 Person1:      A cup of coffee , please . 

1