Detailed Instructions: 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'.
Problem: Person1: Guess who I saw yesterday ?
Person2:Who ?
Person1: My cousin Monk . Have you seen her lately ?
Person2:Not for a couple of years . What happened to her ?
Person1: Nothing exactly . She's grown into a very attractive young lady .
Person2:Oh , she is .
Person1: You know , her long lovely blond hair and beautiful blue eyes really make her stand out from others .
Person2:Not surprising . I bet she's very tall and slim .
Person1: Yean . Around five feet five inches tall .
Solution:
formal