Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. You are required to assign a label 'formal' if there is an absence of emotion and a presence of questions anywhere within the conversation. If such pattern is not found assign the label 'informal'.
Input:  Person1:       Hi . I can't get going on my computer until I get a broadband hookup .  
 Person2:Just plug the Ethernet cable into your computer , and you'll be off and running .  
 Person1:        That would be okay if I had an Ethernet port . Unfortunately , my laptop uses wireless only .  
 Person2:In that case , let me tell you about some alternatives .  
 Person1:        Anything to get me up and running .  
 Person2:For starters , we have a computer lab .  
 Person1:        Fantastic ! What do I have to pay per hour ?  
 Person2:The lab is completely free . But you do have to pay a dime a page for printing .  
 Person1:        That's fine . Now tell me about the other alternatives .  
 Person2:Just bring your laptop down here to the lobby . We're set up for wireless right here .  
 Person1:        Great ! I like that suggestion , but what if I need to print something there ?  
 Person2:Unfortunately , you'll have to go to the computer lab for your printing needs . 

formal