instruction:
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'.
question:
Person1: Excuse me , sir ? I just need a little bit more information . Could you tell me your telephone number and mailing address ?
Person2:Sure . My number is 545-8897 , and I live at 908 Mulbury Street .
Person1: That ' s 545-8897 and your mailing address is 908 Mulbury Street . The zip code is 20310 , right ?
Person2:That ' s right .
answer:
formal

question:
Person1: Ma , I really don't know how to thank you .
Person2:I'm glad I was able to help .
Person1: It's most kind of you .
Person2:Don't mention it . It was the least I could do .
Person1: If there's ever anything I can do for you , Don't hesitate to let me know .
Person2:Thank you .
Person1: I'm most grateful .
Person2:It was a pleasure .
answer:
informal

question:
Person1: Here's Copellini's , my cousin's store .
Person2:Sounds like an Italian name with an " i " at the end .
Person1: Admit it . You just think of Mussolini .
Person2:No , I'm an art lover , so I think more of Bellini and Botticelli !
Person1: Ah , yes . The Italians do love the sensual forms of the human body .
Person2:Don't we all ... hey ! Your cousin sells gift items ?
Person1: Yeah-all from Italy . See all the saints ? They're important to Roman Catholics .
answer:
informal