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'.

Example Input: Person1: Isabelle , you know I'm not interested in fame .
Person2:Well , you don't seem to be interested in getting a real job , either .
Person1: You know I'm interested in teaching . I'm looking for jazz students ...
Person2:Yeah , and every high school student in town is banging on your door , right ?
Person1: I know they're out there . I'll find them .
Person2:You're such a dreamer ! You think that you can spread the word of jazz in an underpass ?
Example Output: formal

Example Input: Person1: I think we have had a very pleasant conversation , haven't we ?
Person2:Yes , I think so too .
Person1: Do you have any other questions ?
Person2:Let me think ... I want to know if the company can provide free accommodation for a new employee .
Person1: I'm sorry we can't now .
Person2:I really hope that your company could provide living places ; otherwise I have to rent a house to live .
Person1: Maybe the company will build dormitory for the employees in the future .
Person2:That would work too .
Person1: Anything else ?
Person2:Some companies will pay part of the phone bills for the employees . Will this company do so ?
Person1: I'm sorry we won't do so for a new employee . We only provide this benefit to employees who have made significant contributions to the company .
Person2:I understand . Will the company provide training ?
Person1: Yes , we will , and the staff will have a chance to travel every year .
Person2:That's great . Thank you very much .
Example Output: informal

Example Input: Person1: I really need to go shopping .
Person2:What do you need to buy ?
Person1: I need to look for a new bedroom set .
Person2:Where are you going to go look for one ?
Person1: I have absolutely no idea .
Person2:You don't know where you want to look for one ?
Person1: No , I'm not sure where they sell nice bedroom sets .
Person2:Do you want to know where I got mine from ?
Person1: Yes , because I love yours .
Person2:I purchased mine from IKEA .
Person1: Is IKEA affordable ?
Person2:Not at all , but you get what you pay for .
Example Output:
formal