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: I usually bowl with an eight ball . I like the control of a light ball . I can spin it more , so that the ball hooks .
Person2:Well . I like them a little heavier . I don't have as much control , usually bowling straight , but the extra momentum compensates for that .
Person1: Well , let's see which technique is better . I think I'll go up first ... Yes ! I hit a strike . I knocked them all down on my first bowl .
Person2:Well done . You got them all . You get 10 points and your next two bowls are added to this frame's score . I'II dry my ball off and try to knock them all down as well .
Person1: Good start . You knocked eight pins down . But you are left with a 7,10 split . Unless you can bowl a UFO-ball on this bowl , it is going to be impossible .
Person2:I certainly can try ... No ! It went straight through the wickets .
informal

Person1: Can I help you ?
Person2:Yes.When is the next train to New York City ?
Person1: Let me see ... the train to New York City ... here it is ... daily except Sunday at ten thirty , twelve twenty and fifteen ten .
Person2:Aren't there any trains before ten thirty ?
Person1: Sorry , not before ten thirty .
Person2:Then one to New York at ten thirty .
Person1: One way or round trip ?
Person2:One way .
Person1: A soft seat or hard one ?
Person2:How much is a soft ?
Person1: 15 dollars.And for a hard one , only 6 dollars .
Person2:Then one hard seat , please .
Person1: OK.Here is your change.The train leaves on platform 8 .
formal

Person1: I don't understand why some parents keep beefing and complaining about their daughters not being able to follow suit .
Person2:Yeah . Li Na's mother has been building a fire under her since her neighbour's daughter got married with a Canadian . She's almost driving Li Na crazy .
Person1: If I were Li Na , I would ask her if she had done that .
Person2:She a as meek as a lamb . She never goes against anyone or anything . She's as good as gold , you know ?
informal