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'.

[EX Q]: Person1: Can I talk to you for a moment , manager ?
Person2:Yes , of course . What is it ?
Person1: I've decided to leave .
Person2:Leave ? Why ?
Person1: I've worked here for two years . And I want to do something different .
Person2:What do you mean by something different ?
Person1: I want to live abroad and learn to speak a different language .
Person2:I'm really sorry . But I understand .
Person1: Thank you , manager .
[EX A]: formal

[EX Q]: Person1: I like this shirt.How much is it ?
Person2:$ 135 .
Person1: Wow , that's sheer robbery.Shall I make an offer ?
Person2:I'm sorry , sir.The price is fixed .
[EX A]: informal

[EX Q]: Person1: Excuse me . Could you tell me how to get to the post office ?
Person2:Of course . Turn right at the next intersection and go straight . The post office will be on your left ( side ) .
[EX A]:
informal