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:     Professor , do you have a few moments when I could meet with you ?  
 Person2:  I schedule my appointments from two to four on Saturday ; what works best for you ?  
 Person1:      Three would be a good time .  
 Person2:  Great , do you need directions to my office ?  
 Person1:      I'm not sure .  
 Person2:  Well , just make sure to go through the double doors , and I'll be on the right .  
 Person1:      OK , I'll find it .  
 Person2:  It's very easy to find .  
 Person1:      See you then .  
 Person2:  I will enjoy seeing you ; have a good week ! 

1