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:       The last thing I want to see is to lose face before my friends .  
 Person2:That ’ s really unbearable .  
 Person1:        But you know , things cannot always go as you expect .  
 Person2:So get prepared for everything . 

informal