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'.
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Question: Person1: I wonder if we can change to Channel 5 .
Person2:Why ?
Person1: I want to know what's on that channel .
Person2:Oh , good .
Person1: There is a football match .
Person2:I prefer TV play to football .
Person1: OK . Could you turn it down ?
Person2:What are you going to do ?
Person1: I'm going to listen to the radio .
Person2:Maybe we can enjoy the TV play together . It's interesting .

Answer: formal

Question: Person1: Mom , why do chinese people like to touch my head ? sometimes they even touch my cheeks .
Person2:That is a part of chinese culture , if they think you are a lovely child , they touch your head and say , how cute you are .
Person1: But i donor like it , not a bit , i am not a pet , i am a girl .
Person2:Well , you get used to it , different countries have different manners .
Person1: But i do not like anyone touch my head .
Person2:They are just been in friendly , when you are in Roman , do as the Romans do , that means you need to adapt to your enviroment .
Person1: What if everybody in the wheres goes crazy ?
Person2:Then you might need to pretend to be a little crazy .
Person1: Does this mean that if i might want those new European bitches , i am supposed to wonder run reget ?
Person2:Do you think it is a ~ got give your brain , use it if you really cannot accept it people touch your head , keep distance from them , why not just wear your big flyby hat and ~ is anyone get close to you .
Person1: That is my work , i will try it .

Answer: formal

Question: Person1: What a beautiful sweater !
Person2:Do you think it looks good on me ?
Person1: Yes , and it goes beautifully with your pants .
Person2:You won't believe it , but it was really cheap .
Person1: I wish I could find one just like it .

Answer:
informal