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 cannot ignore her suggestion . In fact I always value her suggestion .  
 Person2:I know . Maybe you will get the air if you go against her .  
 Person1:        Well , it takes two to to make a happy marriage .  
 Person2:And it takes two to make an agreement too . You have no guts , I am afraid . 

informal