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:       Have you heard anything about Markweed Inc . ? They have called me back for interview , and I'm considering taking a job with them .  
 Person2:Well , to start with , Markweed Inc . has a reputation for being one of the best employers in the field .  
 Person1:        The best ... huh ? With so many companies out there , how did they establish themselves in such a solid position on top ?  
 Person2:First of all , they have an excellent benefits package for all employees , even the maintenance staff have health and dental coverage .  
 Person1:        Really ? What about the pay rate ? Are the wages pretty high ?  
 Person2:From what I hear , they are very reasonable . A lot of the prestige the company has built is because they have attacked some high profile employees with their incentives .  
 Person1:        Well , what about the work environment ? Not every one is motivated solely by money .  
 Person2:It's a great place to work . They give you fair pay and benefits , and a lot of room to grow . I think if they off you a job , you should definitely take it . 

informal