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:       can I use your laptop for a while ?  
 Person2:sure , go ahead .  
 Person1:        oh , isn't your computer Wi-Fi capable ?  
 Person2:yes , it is . You want go online ? there are no wi-fi hotspots around .  
 Person1:        oh my , no internet access is killing me .  
 Person2:can't you wait till you get home ? then you can surf the internet using the broadband , wireless connection or whatever you like .  
 Person1:        no , I'm not feeling myself . I just want to check my emails , visit my favorite websites and chat with my friends .  
 Person2:now I see , you must be suffering from discomgoogolation .  
 Person1:        what does that mean ? there's nothing wrong with me .  
 Person2:well , the term " discomgoogolation " comes from " discombobulate " and " google " . Because floods of information are just a mouse click away , net users are very likely to become addicted to the web .  
 Person1:        that's alright . I just can't bear losing track of all the latest information . It almost drives me crazy .  
 Person2:then , you're probably addicted . 

formal