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:       Can you please give me a hand ? I can ’ t carry the heavy box .  
 Person2:I ’ m afraid not . Don ’ t you see I ’ m looking up a word in the dictionary ?  
 Person1:        I think you are flicking through it .  
 Person2:Well , wait a minute . 

informal