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 would like to make an appointment for a project meeting . 
 Person2:Of course , I have Monday or Tuesday available . What day would be best for you ? 
 Person1:        I would like to meet on Monday . 
 Person2:Very well then . Are mornings or afternoons best ? 
 Person1:        I want to come in the morning . 
 Person2:I will have my assistant check my calendar and get back to you with the exact time . Can you bring me an outline of the project when you come ? 
 Person1:        Yes , I can bring the outline when I come to the meeting . 
 Person2:Do you think that we should include the entire committee in the meeting or just our sub-committee ? 
 Person1:        I think that we should have just the sub-committee . 
 Person2:OK then , I will make the arrangements for them to attend . Do you know how to get there ? 
 Person1:        No , I need directions , please . 
 Person2:Fine , we will make sure that we send you all of the information that you need . See you there ! 

formal