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:       How's it going ? 
 Person2:I'm doing well . How about you ? 
 Person1:        Never better , thanks . 
 Person2:So how have you been lately ? 
 Person1:        I've actually been pretty good . You ? 
 Person2:I'm actually in school right now . 
 Person1:        Which school do you attend ? 
 Person2:I'm attending PCC right now . 
 Person1:        Are you enjoying it there ? 
 Person2:It's not bad . There are a lot of people there . 
 Person1:        Good luck with that . 
 Person2:Thanks . 

informal