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: I ' Ve got a new boss .
Person2:Oh , what ' s he like ?
Person1: Well , he ' s got dark hair and brown eyes .
Person2:Yes .
Person1: And a white sports car .
Person2:Um , that ' s good .
Person1: Yes , but he ' s got a wife and 3 children as well .
Output:
informal