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'.
Input: Person1: Have you heard of the Love Bug ?
Person2:Do you mean the ' I love you ' virus that attacks computers through e-mail ?
Person1: Yes . It is one of the most harmful computer viruses in the world . People say it will break out again om Valentines ' Day this year .
Person2:This is terrible . Why do hackers play such a dirty trick ?
Person1: Hackers are smart , and they want people to know about it .
Person2:So they create viruses to tell people they are smart ? That's really sick .
Output:
informal