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: Could you explain the paper-making process to us - in very simple terms - please ?
Person2:Well , the pulp falls from a box onto the first part of the paper machine , which is basically a wire bed with large holes in it , where most of the water is extracted .
Person1: So , is it actually paper at this stage ?
Person2:Yes , it is . But we need to take out more water . So it then passes through a series of rollers , where more water is squeezed out . After that it goes through the dryers , which are at a very high temperature . The paper is then coated . And finally it's wound onto reels and cut down into smaller lengths .
formal

Person1: Hello , are you interested in this Honda ?
Person2:Hi , I am just looking .
Person1: It's a good car .
Person2:What year is it ?
Person1: 1999 .
Person2:How about the mileage ?
Person1: 6,000 miles , all highway mileage .
Person2:What do you mean 7B
Person1: Highway miles are not as bad as local miles . They do not hurt car as much .
Person2:Oh , why such a high mileage ?
Person1: The owner was commuting everyday crossing the state line .
Person2:Okay . Does this car have a warranty ?
Person1: One month .
Person2:How do I make sure I am not buying a junk ?
Person1: You'll check it out anyway you want . You can take it to a garage .
Person2:How much is it ?
Person1: $ 5,900 .
Person2:I'll have to think about it .
Person1: Leave your phone number , and I will give you a call if the price gets reduced .
Person2:Okay .
formal

Person1: When in Rome , do as the Romans do , they say .
Person2:What do the Romans do ?
Person1: They live in Rome , of course , and go to work by car or bus . But sometimes it takes too long that way because of the traffic jams , so they walk .
Person2:In other words , the Romans do what everyone else does .
Person1: Yes , but they do it differently . Everything is different .
Person2:What do you mean ?
Person1: Well , the climate's different for a start . It doesn't rain so much as it does in England . The sun shines more often .
Person2:I envy them the sun .
Person1: I know . You hate the rain , don't you ?
Person2:I certainly do .
Person1: And a Roman really Ioves life . Eye knows how to enjoy himself .
Person2:They always eat spaghetti and drink wine , don't they ?
Person1: Not always . But they like a good meal . Lots of tourists go to Rome just for the food , you know .
Person2:Really ? How much does it cost to fly to Rome ?
Person1: I don't know exactly , but it costs a lot of money .
informal