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:       Do you buy that newspaper every day ? 
 Person2:Yes , I do . I find it very informative.It always has plenty of articles from correspondents all over the world and the business section is very useful too . 
 Person1:        Is there a Sunday edition of that newspaper ? 
 Person2:Yes . There is . it has several sections , so it ’ s quite a read ! It usually takes me a few hours to read it on Sunday morning . 
 Person1:        What section does it have ? 
 Person2:Let me see . There ’ s the news section , the entertainment section , sports , business , and world affairs . 
 Person1:        What ’ s in that section ? 
 Person2:World affairs ? They look at the most important stories in more detail . I find it fascinating . Do you buy a daily paper ? 
 Person1:        I buy a national newspaper sometimes , buy I nearly always buy a local evening newspaper . I find the local news more interesting than national or international news . 

formal