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 ’ Ve had it ! I ’ m done working for a company that is taking me nowhere !  
 Person2:So what are you gonna do ? Just quit ?  
 Person1:        That ’ s exactly what I am going to do ! I ’ Ve decided to create my own company ! I ’ m going to write up a business plan , get some investors and start working for myself !  
 Person2:Have you ever written up a business plan before ?  
 Person1:        Well , no.it can ’ t be that hard ! I mean , all you have to do is explain your business , how you are going to do things and that ’ s it , right ?  
 Person2:You couldn ’ t be more wrong ! A well written business plan will include an executive summary which highlights the idea of the business in two pages or less . Then you need to describe your company with information such as what type of legal structure it has , history , etc .  
 Person1:        Well , that seems easy enough .  
 Person2:Wait , there ’ s more ! Then you need to introduce and describe your goods or services . What they are and how they are different from competitors ’ ? Then comes the hard part , a market analysis . You need to investigate and analyze hundreds of variables ! You need to take into consideration socioeconomic factors from GDP per capita to how many children on average the population has ! All this information is useful so that you can move on to your strategy and implementation stage , where you will describe in detail how you will actually execute your idea .  
 Person1:        Geez . Is that all ?  
 Person2:Almost , the most important piece of information for your investors will be the financial analysis . Here you will calculate and estimate sales , cash flow and profits . After all , people will want to know when they will begin to see a return on their investment !  
 Person1:        Umm . I think I ’ ll just stick to my old job and save myself all the hassle of trying to start up a business ! 

informal