Teacher: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'.
Teacher: Now, understand the problem? Solve this instance: Person1: What's your email address ?
Person2:It's bulldog 123 .
Person1: Bulldog 123 . Are you sure that's all ?
Person2:Yes .
Person1: No . That's incomplete .
Person2:What do you mean ?
Person1: What's your mailing address ?
Person2:456 Cherry Drive , Pasadena , CA 91170 .
Person1: That's correct .
Person2:So what's the problem ?
Person1: Bulldog 123 is just the street . You have to give me the city , state , and ZIP code .
Person2:Oh , I get it . My email address is bluedog123@yahoo.com .
Student:
formal