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'.

[EX Q]: Person1: You are in love with Mary , right ?
Person2:You are pulling my legs !
Person1: I am not blind . Anyone can see that with half an eye .
[EX A]: formal

[EX Q]: Person1: Would you like to go to the movies tonight ?
Person2:Well , I just saw a horror movie last night . It almost frightened me to death .
Person1: Well , we could see something different like a detective film .
Person2:I don't care for a detective film . It also makes me nervous .
Person1: How about a comedy ?
Person2:No , I don't think comedies today are natural or cheerful .
Person1: How about a love story then ?
Person2:No , romance is boring .
Person1: What's you opinion ?
Person2:Let's go to see a war movie , shall we ?
Person1: Really ?
Person2:Certainly . Is there anything wrong ?
Person1: No , but I can't imagine that a girl like you would wonder to see a war movie .
[EX A]: informal

[EX Q]: Person1: I never understand why these shops have so much liquor .
Person2:What do you mean ? It's because it's much cheaper to buy liquor duty-free .
Person1: But why ? Why don't people like to buy shirts duty-free ? Or shoes ? I just don't understand why it's always liquor .
Person2:Well , it's because in most countries liquor has a higher tax on it .
Person1: You mean liquor has a higher tax than other things ?
Person2:Yes , of course . Didn't you know that ?
Person1: No , I didn't . How high is the tax ?
Person2:Well , it is different in different countries.But it's because of the high tax that buying liquor duty-free is such a good deal .
Person1: Why would the government want to tax liquor so much ?
Person2:Liquor is considered a luxury item.And also , it is considered as something that isn't very healthy.So if people want to buy it , the government thinks it has the right to tax it .
Person1: That's why a lot of people buy cigarettes here too , isn't it ?
Person2:Of course . Cigarettes are also taxed very heavily .
[EX A]:
formal