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'.
Q: Person1: You got a letter in the mail .
Person2:Give it to me .
Person1: What is it ?
Person2:It ' s my acceptance letter from UCLA .
Person1: What does it say ?
Person2:I ' Ve been accepted !
Person1: Are you serious ?
Person2:I ' m serious .
Person1: Good for you !
Person2:NYU was my first choice , but UCLA is just fine .
Person1: I ' m so proud of you .
Person2:Thanks . I ' m proud of myself , too .
A:
informal