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:       Jane , we are going to have a board meeting next Friday . Will you please arrange it for me ? 
 Person2:Certainly , Mr . Robert . But can I have your plan ? 
 Person1:        Sure . Actually it's a routine board meeting . The things to be discussed are all written here . 
 Person2:Very good . May I keep it ? I need it to draw up a notice of the meeting and the agenda . 
 Person1:        Go ahead . It's for your reference . While you are at it , make me a special agenda and don't forget to have enough room at the side for notes . 
 Person2:You mean you need a more detailed agenda for yourself ? 
 Person1:        Exactly . As I am supposed to the chair of the meeting , I don't want it to get out of control . 
 Person2:I see . Ok , then where do you think we will have the meeting ? 
 Person1:        The conference room on the second floor , is that ok ? 
 Person2:Yes , I will see that the room is ready by Friday . And I will check there are enough chairs , and the lighting and air-conditioning are all right . 
 Person1:        Good , and please get some water , glasses and ash tray ready as well . 
 Person2:Sure , I will . What about the minutes ? Do you think I am responsible for that too ? 
 Person1:        Definitely . The minutes have to be taken accurately . 
 Person2:But I am not familiar with the members of the board . 
 Person1:        Oh , that's easy . I will write you a list of their names . You can make a seating plan with the names and give each one a number . 
 Person2:That's a good idea . All right , I ’ ll withdraw and get down to it if you don't mind . 

formal