Given the task definition and input, reply with output. 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'.

Person1: Hello , May I help you ?
Person2:Yes , we're interested in seeing the rooms for rent .
Person1: Oh , how nice ! there are bright rooms and the house is very quiet .
Person2:That is exactly what we're looking for .
Person1: Well , each room is 40 dollars a week .
Person2:That sounds all right to us .
Person1: When do you want to move in ?
Person2:How about tomorrow afternoon ?
Person1: Fine , I'll be expecting you .
Person2:See you tomorrow .
informal