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 love slim girls , don ’ t you ?  
 Person2:Not particularly . I like fat girls .  
 Person1:        And I like a girl with good skin , do you ?  
 Person2:I can ’ t say I do . What I like a girl with good manners .  
 Person1:        Well , yes . But surely you like a girl with a nice figure .  
 Person2:Yes . But I like a girl with a nice personality .  
 Person1:        But you like a girl to be rich , surely ?  
 Person2:Not particularly . I like a girl to be good . 

formal