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:       Are you getting overtime ?  
 Person2:Yes , but it's not so appetizing .  
 Person1:        Have you thought about another job ?  
 Person2:That's what's hanging on my mind recently . 

formal