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:       Nice dress . How do I look ? Be honest .  
 Person2:Hmm ... you look too dressed up . How about this purple top and these jeans ?  
 Person1:        Well , that top is a little too tight , and those jeans aren ’ t dressy enough . And I don ’ t feel comfortable with that . What do you think , Vicky ? You ’ Ve been very quiet up to now .  
 Person2:Be confident . Wear styles you ’ re going to be comfortable in . 

formal