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: Why didn't you sign the contract ?
Person2:Because that company's behavior is not in accordance with international law .
formal

Person1: How do you like your work ?
Person2:The work is rather hard , but it's interesting .
Person1: What do you do ?
Person2:I work in a publishing house . How about you ?
Person1: Mine isn't hard , but it's not interesting .
Person2:What do you do then ?
Person1: I'm a clerk in a shop .
formal

Person1: Professor , I'm concerned about my grades . Do you have a minute ?
Person2:Of course , how can I help you ?
Person1: I want to know if I am doing OK .
Person2:Let's pull out your scores so far . Do you think you are doing OK ?
Person1: I am afraid that I might not be doing all that well .
Person2:I'm seeing that you are doing OK in some areas , but not so well in others .
Person1: I think I could take better notes and read a little more .
Person2:You can greatly improve your grades by always reflecting on what you can improve on .
Person1: I'm working on it !
Person2:Just do your best and I am sure that you will see improvement .
formal