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:       Hello , this is Lucy from ABC Company . Is this Monica ? 
 Person2:Yes , it is . 
 Person1:        I am calling to inform you that we have arranged an interview for this accountant position at 2 PM this Thursday afternoon . Please come on time . 
 Person2:Ok , thank you . By the way , could you please tell me how I can get there from A community ? 
 Person1:        Oh , you can take the subway , get off at B stop and walk north for several minutes . You will find a building . It will take about 40 minutes in total . 
 Person2:I got it . Thank you so much . 
 Person1:        You ’ re welcome . 

formal