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:       Sandra is actually a blue chipper . I don't think she could realize that she has married a fool for women .  
 Person2:That's fate .  
 Person1:        I feel sorry for her .  
 Person2:Maybe this is God's will . 

informal