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:       I like watching comedies , like ' Boat ' . Do you like watching comedies too ?  
 Person2:Not really , I like watching horror movies , like ' The Unborn . '  
 Person1:        You like horror movies ? I don't like them because they're too scary ! I like comedies because I love to laugh .  
 Person2:I like horror movies because I like to be scared . 

formal