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:       Mr . Smith , I have been doing some industry research and was shocked to learn that the average salary for a position that is similar to mine pays on average $ 2,000 more per year than I am c  
 Person2:What are you basing this information on ?  
 Person1:        First and secondary research . I hope that you can address this concern immediately as i find it very disturbing .  
 Person2:Yes , I will.We are very happy with your performance and want to continue our woodworking relationship .  
 Person1:        I wish the same . As such , I hope you will seriously consider a pay increase .  
 Person2:Let me take this up with the Director and get back to you immediately . 

formal