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:       It's not good for business recently .  
 Person2:Not good for business ? I don't see eye to eye with you.The new policy offers new opportunities .  
 Person1:        Too risky anyway.It ' s necessary to look before you leap . 

formal