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'.

[Q]: Person1: Are you going to the party on Saturday ?
Person2:I was thinking about it . Are you ?
Person1: Yeah , I heard it's going to be a lot of fun .
Person2:Really ? Well , what time does it start ?
Person1: It starts at 8
Person2:Well , who all is going to be there ?
Person1: Everyone from school .
Person2:How do you know it's going to be so fun ?
Person1: This party is going to have a DJ , food , and drinks .
Person2:Wow , that does sound like it's going to be fun .
Person1: So am I going to see you at the party ?
Person2:Yeah , I will be there .
[A]: informal

[Q]: Person1: Would you please teach me how to use the computer ?
Person2:Sure , let's take a look at the menu first .
Person1: Do I have to turn on the computer ?
Person2:yes , we can look at the computer and computer menu at the same time . And this will help us understand both better .
Person1: What should I learn first ?
Person2:Right now I'll teach you to open files , save files and copy files . Are you ready ?
Person1: I am ready I am going to get , let's start !
[A]: informal

[Q]: Person1: The mosquitos are biting me !
Person2:Me , too , I can ' t stop scratching . They are everywhere ! Sneaky little jerks .
Person1: Do you have any bug spray ?
Person2:No , I forgot to buy some .
Person1: Then we ' ll have to put up with it .
Person2:We can cover ourselves with beer ! That way if they bite us , they ' ll get drunk and fall asleep .
Person1: That ' s without a doubt , the best idea you ' Ve had ! Let ' s do it !
Person2:Run ! They are thirsty for more !
[A]:
formal