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:       David , I heard you lost your job .  
 Person2:Yeah , you remember that assignment I wanted ? When I heard the manager had given it to someone else , I blew my top . So the manager fired me .  
 Person1:        Well , that'll teach you to control your temper . 

formal