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 feel very miserable . I took the death of my wife very hard , you know . 
 Person2:Cheer up ! Let bygones be bygones . 
 Person1:        I ’ Ve tried it , not a chance . 
 Person2:It seems you have to take time . 

informal