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: Good coming .
Person2:Good coming . Are you through with the cleaning ? If not , we'll come back a little later .
Person1: Never mind , come right in . I've almost finished . You always keep the room neat and tidy , I must say . It saves me a lot of work , but you should let me do it .
Person2:It doesn't take much time . I ' m used to tidying up my room myself .
Person1: It's very considerate of you to do so . Do you have any laundry today ?
Person2:I have a suit that needs cleaning .
Person1: Let me have it , please . I'm taking some laundry downstairs anyway .
Output:
informal