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:       Julia , I would like to have a word with you . Have a seat . 
 Person2:Thank you . 
 Person1:        According to your performance , I decided to give you a salary increase . From next month , there will be a 2,000 yuan raise to your salary . Although your first raise might not sound considerable , the company believes that with your ability , sooner or later you'll get a better raise . 
 Person2:Thank you very much . Mr . George . As a newcomer , I understand that you have your consideration and I am satisfied with the raise . 
 Person1:        I think you deserved this . 
 Person2:Thank you again . I'll keep doing my best . 

informal