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: Who's that striking woman over there ?
Person2:Hm ? Oh , that's Alice . She's totally mad . Don't get yourself in a room alone with her .
Person1: Really ? Why not ? She looks great .
Person2:Yes , I know , but she's dangerous .
Person1: Really ? Tell me more .
Person2:Well , I'm not one to gossip , as you know , but rumor has it that she sued her former boss for sexual harassment .
Person1: Wow , crikey . So what happened ?
Person2:Well , this is just between ourselves , of course , but he was her lover and he wanted to leave her , so she got revenge . I heard him say she was a dangerous woman .
Person1: Wow .
Person2:Oh , while we're on the subject , what happened to you and your secretary ?
Person1: I have no idea what you're talking about .
Person2:Oh , come on . Everybody knows .
Person1: Could you excuse me a moment ? I have to make a phone call
Person2:Oh , sure .
[A]: informal

[Q]: Person1: Good morning Mike !
Person2:Morning Sally ! What's up ? you seem in a hurry !
Person1: I am having an exam at nine , It's already eight thirty .
Person2:Don't worry , I'll drive you .
Person1: Thank you very much !
Person2:How are your cases coming along ?
Person1: Very well , thanks , I will probably finish next week , but this is still a lot of work , I have been worked on in for six months , and i ' m so closed to end . I can feel it .
Person2:Wow , Good for you.It sounds like a lot of work . I'm proud of you ! Is this the right building ?
Person1: Yes , It's only eight forty . Thanks so much !
Person2:You're welcome.Good luck , bye !
Person1: Have a nice day , bye !
[A]: informal

[Q]: Person1: Hey , Mary , can you cut that out ?
Person2:Cut what out I ' m not doing anything .
Person1: The tapping of your pen on your desk . It ' s driving me crazy .
Person2:Fine ! By the way would you mind not slurping your coffee every time you have a cup !
Person1: I don ' t slurp my coffee . And plus , how can you hear it when you ' re shouting into your phone all the time ?
Person2:You ' Ve got to be kidding me ! You ' re complaining about me talking on the phone when you go out for a cigarette break ten times a day to shoot the breeze ?
Person1: Look , we have a lot of accumulated anger from working in these conditions , and it ' s probably okay to let off steam once in a while . But , it ' s probably not a good idea to keep it up I ' m willing to forgive and forget and if you are .
Person2:Fine . Let's call a truce . I'll try to more considerate and to keep the noise down .
Person1: Yeah , I ' ll try to do the same.So , I was wondering you wanna go out to dinner Friday night ?
[A]:
informal