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:     Good morning . How can I help you ?  
 Person2:  I want to apply for a passport here .  
 Person1:      OK . Please fill in these forms and take them back when you are done .  
 Person2:  ( 10 minutes later . ) Hi . Here are completed forms .  
 Person1:      OK . Can I have your original ID card and tw0 2 - inch photos ?  
 Person2:  Here you are , But I forgot my photos .  
 Person1:      That is OK . We have photo taking service here . You may pay your fee , take a photo there and take it back here .  
 Person2:  OK . I am going right now . 

1