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: Good afternoon , everyone . The experiment is to start at 3 . Have you gone through the instructions ?
Person2:Yes , sir .
Person1: Ok , now some points for attention . First of all , pay attention to safety ... Now , sign your names on the lab record , and after that you can start . If there is any question , just let me know .
Person2:Excuse me , sir . This air compressor doesn't work .
Person1: Have you turned it on ?
Person2:Yes , I have .
Person1: Ok , I will get you another one .
Person2:Thank you .
formal

Person1: Hi , Janice . Our first weekend after being employed is coming . Show me your plan .
Person2:My mom phoned me this morning , and asked me to go back home to have housework chores .
Person1: What are you assigned to do ?
Person2:God knows . Speaking of chores , I would rather do some washing than cooking .
Person1: For me , I think I will iron my shirt and trousers . Actually , weekends tend to be the most hectic day in the whole week .
Person2:I really hope that I could sleep like a log all through two nights . But ... Some one said that weekends are a bit like rainbows ; they look good from a distance but disappear before we get up close to them .
Person1: I couldn't agree more .
formal

Person1: I can't bear you anymore . I am sick of your drinking . I am divorcing you .
Person2:Don't do that to me , honey . Give me a chance , please . I make a solemn promise never to drink alcohol again .
Person1: How many chances should I give you ? I've given up on you !
Person2:Have a heart , honey . You know I am trying hard to quit drinking , don't you ? Just give me one more chance , please !
informal