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:     Can I help you ? 
 Person2:  Yes , I ’ m doing some research on Roman civilization . Do you have any books on the subject ? 
 Person1:      These books over here are about ancient history . They might be helpful . 
 Person2:  Can I check this one out ? 
 Person1:      I ’ m sorry . It ’ s for reference only , so it must stay in the library . But you ’ re welcome to look through it . 
 Person2:  Ok . And I ’ d like to check these books out . 
 Person1:      All right . They ’ re due back next Wednesday . 
 Person2:  Thanks for your help . 

1