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 am in hot water now , all the things seem to be blown up .  
 Person2:Don't be scared.Bite the bullet and everything will be right again .  
 Person1:        Thank you for encouraging me . There are problems cropping up here and there . But I will over come them one by one . 

informal