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: The weather in Beijing is just beautiful !
Person2:Autumn is the best season in Beijing , you know .
Person1: Yes , I can see . The summer heat is over , and the winter cold is still far away .
Person2:What is the weather like in Washington at this time of this year ?
Person1: Autumn is also very nice in Washington .
Person2:Is it very cold in winter there ?
Person1: No , it isn't . But sometimes it snows a lot in winter .
Person2:Does it rain a lot in summer there ?
Person1: Oh yes ! Sometimes it rains very heavily.How about here in Beijing ?
Person2:There's a lot of rain in summer , but it seldom rains in autumn .
Person1: I feel it's rather dry here .
Person2:That's true . Many people from the south don't like the weather here .
Person1: Are you from the south ?
Person2:No , I'm from the north . I was born in Beijing , actually .
Person1: I see.so this is your hometown ?
[EX A]: informal

[EX Q]: 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 .
[EX A]: formal

[EX Q]: Person1: I hate landing in the sand trap ! Now I'm probably going to waste strokes getting it out .
Person2:At least you haven't landed in the water yet . I've done that on the last two holes .
Person1: Could you hand me my wedge ? I'll try ...
Person2:Here you go . I'll wait for you to get on the green before I putt .
Person1: No . you go ahead and putt it out . Then I'Il go .
Person2:No way , Mary . I'm going to let you go first . I don't want the pressure of putting first .
[EX A]:
informal