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: Hey , where's Cindy ?
Person2:She told me that she's got tennis practice today .
Person1: You're Mary , right ?
Person2:How did you know ?
Person1: Cindy told me about you in our gym class .
Person2:I see . Do you live in this neighborhood , too ?
Person1: My house is next door to yours .
Person2:Oh , Cindy did mention you before . You're Alexander Newman .
Person1: Just call me Alex . Alex and Alexander are the same thing .
Student:
formal