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: Are you still at that work ?
Person2:Yes , I'm still working there . But I really find my job boring . I'd like to change my job .
Person1: What sort of job do you have in mind ?
Person2:I think I'm quite fit for a driver .
Person1: But it's very tired .
Person2:I don't care .
Person1: What's your parents ' opinion ?
Person2:I haven't told them . Maybe I'll make them know after the vacation .
Output:
formal