Given the task definition and input, reply with output. 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'.

Person1: How do I look ? I love these braids . They're fun !
Person2:They look great ! Hey , are you hungry ? I know a good Ethiopian restaurant-Meskerem .
Person1: An Ethiopian restaurant ? Whoa ! I always think of starving people in Ethiopia .
Person2:It's very " in " these days . Some of the places are really expensive .
Person1: That's so ironic ! Well , what's it like ? Is it your traditional food ?
Person2:No . Africans and African-Americans are different in many ways . Our food's different , too .
informal