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: Is this the A housing office ?
Person2:Yes , it is . Are you looking for housing for this semester ?
Person1: I was hoping to get into something on campus , but my friend told me that everything is full .
Person2:It is , but I can put you on a waiting list , if you would like .
Person1: Please . And in the mean time , can I look at apartments available in the area from this office ?
Person2:Yes , here is a catalog that is put out every year with locations that meet campus requirements for As .
Person1: Who do I talk to if I want I to see some of them ?
Person2:The individual landlord's numbers are next to each entry . You can call them with any questions you may have .
[EX A]: formal

[EX Q]: Person1: Good afternoon . Reservations . May I help you ?
Person2:Yes , I'm calling from Tenga Company . I'd like to know if you have rooms available for the nights from October 8 to October 12 . We are going to have a business conference .
Person1: May I ask how many people there will be in the party ?
Person2:20 persons .
Person1: What kind of room would you like ?
Person2:Double rooms with twin beds .
Person1: A moment please , sir . Yes , I can confirm 10 rooms for those days .
Person2:Thank you . Is there a special rate for a group reservation ?
Person1: Yes , there is a 10 percent discount .
Person2:That is fine .
[EX A]: formal

[EX Q]: Person1: I don't think the lecture is very interesting .
Person2:The lecturer is dull , too .
Person1: I feel he's like a talking machine .
Person2:I feel the same way .
[EX A]:
informal