Q: 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: Susan , I am inviting you and Frank to our house warming party this weekend .
Person2:A house warming party ?
Person1: Yes , Deborah and I are going to buy a new home in Woodlawn .
Person2:Congratulations ! That ' s wonderful . I bet both of you are quite happy .
Person1: Well , we have always dreamed of owning our own home , but real estate in this area is extremely expensive .
Person2:I understand . That ' s why Christopher and I want to find a place in a small town , far from the city .
Person1: That ' s a good idea if you can find employment nearby .
Person2:I agree . That ' s why Christopher is already looking for a job in Maine , or Wisconsin .
A:
informal