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:       Would you like me to fill out the form ? 
 Person2:I suppose so , but don't rush . I've got to tell you how to do it . 
 Person1:        That's very kind of you . 

informal