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: Way to go ! It seems beautiful and very delicious .
Person2:Thank you.Thanks to the baker , I benefit a lot from him .

SOLUTION: informal

PROBLEM: Person1: you are dressed to kill . You look gorgeous , Alexander .
Person2:thanks . This is my power suit . I have a dinner date tonight .
Person1: how did you meet each other ?
Person2:she's a friend of Amy . We met at Amy's birthday party .
Person1: is this your first date ?
Person2:yes . I hope it pans out . Cross your fingers , Lily .
Person1: sure it will . Oh , no , it's seven fifteen already . I'm going to be late for my date .
Person2:oh ... so you buried the hatchet with Steven ?
Person1: absolutely not ! He's a cheater . I will never talk to him again . I'm over with him . He's history !
Person2:then who will you meet tonight ?
Person1: a guy I met on the internet three month ago .
Person2:really ? Are you sure this is a good idea ?
Person1: please don't be so fussy ! I didn't just meet him yesterday .
Person2:I know , but remember to meet in a public place and don't give out your personal information .

SOLUTION: informal

PROBLEM: Person1: how do you usually get to school ?
Person2:I usually ride my bike . Which form of transport do you prefer to use ?
Person1: I feel that I can see more when I pedal a bicycle , but when I feel lazy , I drive my car .
Person2:I think we should discourage people from using their private cars . They produce too much pollution !
Person1: I agree , but I would find it difficult to stop using my car . It's just so convenient .
Person2:cars might be convenient , but they're so bad for the environment .
Person1: do you have a car ?
Person2:no . I used to have one though . Once I started using my bicycle to get around , I found that I didn't really need it .
Person1: maybe if I sold my car now , I wouldn't be so tempted to use it .
Person2:you could try . It would save you a lot of money .
Person1: that's true . Every month , I spend hundreds of dollars on gas , insurance , and repairs .
Person2:if you got to class by riding a bicycle every day instead of driving , you will get lots of exercise , too !
Person1: I could stand to lose a few pounds . Having a car has made me lazy . I never end up walking anywhere !
Person2:let's go to a car dealership . I'll help you try to sell your car for a good price .
Person1: sounds good ! Let's go !

SOLUTION:
formal