You will be given a definition of a task first, then some input of the task.
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 , sales department.May I help you ?
Person2:Could I speak to Mr Wood , please ?
Person1: I'll see a piece available , who should I say is calling , please ?
Person2:John eng
Person1: Hold the line , please.Mr Wood is in the meeting with managing director at the moment I afraid.Can I help you ?
Person2:Well , I want to discuss with them the new control we said last week .
Person1: I don't think the meet will go on much longer , should I ask him to call you when he is free .
Person2:Yes , that will be easiest .
Person1: Could I have your name again , please ?
Person2:Yes , It's John eng .
Person1: And the number ?
Person2:01088256798
Person1: Ok , you will be hearing from Mr Wood later in the afternoon then , Mr John .
Person2:thank you for help.good bye .
Person1: You are welcome , goodbye .
Output:
formal