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:       Hey , Frank , there is that Janet Check .  
 Person2:Wow , what a great burd !  
 Person1:        She sure knows how to strut her stuff .  
 Person2:She's a real turn-on our rights .  
 Person1:        And look out she's dressed .  
 Person2:Yeah , I noticed . She must be really loaded .  
 Person1:        No way . Her old man is rich . He buys her anything she wants .  
 Person2:Lucky her . Anyway , I think that is just as beautiful .  
 Person1:        I think you've lost it .  
 Person2:Well , that's my opinion .  
 Person1:        I admit that she is much prettier than Kate .  
 Person2:Oh , there is no comparison . Now we are talking but ugly .  
 Person1:        At least we agree on that . Let's go and get a drink . 

informal