TASK DEFINITION: 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'.
PROBLEM: Person1: Oh , my god . How can you stand living in such a messy dorm ?
Person2:Our place is spotlessly clean , compared with others .
Person1: Have you even tried to clean it once since you moved in at the beginning of the semester ?
Person2:In fact , I just swept the floor three days ago .
Person1: I think we need to restart the dormitory sanitation inspection system .
Person2:I bet nobody will care about it .

SOLUTION: informal

PROBLEM: Person1: You look happy .
Person2:I am happy . I just bought a new car .
Person1: Wow ! Is it a good car ?
Person2:It ' s a great car . It ' s very comfortable and it goes really fast .
Person1: Was it expensive ?
Person2:Put it this way it wasn ' t cheap .
Person1: What colour is it ?
Person2:It ' s red and black .

SOLUTION: informal

PROBLEM: Person1: Hello , there . Welcome , and what can we assist you with ?
Person2:Good morning . I have a Bill of Exchange against Bank Acceptance here . I'd like to discount it . Is that possible here ?
Person1: Yes , we can do that . We require the original Trading Contract and also the VAT Invoice and the Commodity Delivery Documents . They all need to be in duplicate .
Person2:Yes , I've got all that here .
Person1: Do you have a copy of the ID card of the person who took care of the legal aspects of this ? The Legal Rep , I mean ? We also need the Loan Certificate as well . Do you have that ?
Person2:A copy or the original ? I guess you need the original , right ? OK , I'll return shortly .

SOLUTION:
formal