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:       I haven't met you at the gym for a long time .  
 Person2:yeah , I quit my job , and started working from home . Recently I've got a project to deal with and don't have much time to work out .  
 Person1:        why ? You have a decent salary , lots of promotion opportunities and a regular life of going to the office at 9 o ' clock and coming back home at 5 in the evening .  
 Person2:it's not about pay raise or promotion . You know , I hate getting up early in the morning and coming back home late at night .  
 Person1:        then SOHO is your ideal work style .  
 Person2:yeah , as long as I have a computer and internet access , I can start working . I recently enjoy working in my own place and at my own pace .  
 Person1:        and you don't have to work under that much pressure and control .  
 Person2:absolutely . I can decide when and what to do all by myself .  
 Person1:        sounds great . Are there many business opportunity ?  
 Person2:yeah , I can find enough online .  
 Person1:        it's good to have business around . But you should also do some exercise to keep fit .  
 Person2:thank you for reminding me . I'll continue to exercise as soon as I finish this project . 

informal