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:       What sort of salary did you get at your previous job ?  
 Person2:Well , I got $ 3,000 per month .  
 Person1:        I see . I am sure we can offer you $ 3 , 500 at the beginning . Would that be satisfactory ?  
 Person2:Yes , I think so . That would be more than I have wished .  
 Person1:        Good . We also have health insurance , bonus and paid vacation . When can you begin to work ?  
 Person2:What about early next week ?  
 Person1:        Good . Please come in on Monday . Working hours are from eight to four-thirty . Lunch is fifty-five minutes .  
 Person2:Yes , sir . 

formal