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'.

Q: Person1: He's only interested in harassing you . How can he expect us to have so much time to waste ?
Person2:I almost want to send him a virus to shut his stupid computer down .
Person1: As obnoxious as Bean is , we should still try to finish this case .
Person2:True-well , do you have any forwards for me to send him ?
Person1: Yeah ! Remember that one about putting light bulbs in your mouth ?

A: formal
****
Q: Person1: Hello , is this People's Theater ?
Person2:Yes , it is . May I help you ?
Person1: Yes , are advance tickets for ' Nut croakers ' still available ?
Person2:What date , sir ?
Person1: October 16th .
Person2:Let me see . Yes , we still have some tickets left . Which performance ?
Person1: 7:30 p . m . performance , please .
Person2:OK , we have tickets at 100 yuan and 50 yuan .
Person1: I'd like to reserve two seats at 100 yuan , please .
Person2:All right . May I have you name , please ?
Person1: Du Kun .
Person2:When would you like to collect the tickets ?
Person1: Tomorrow .
Person2:We can hold them until one day before the show .
Person1: How do we cancel , just in case ?
Person2:Just telephone us , and let us know in advance . We don't charge for cancellation .
Person1: All right , thank you very much . Good bye .
Person2:You are welcome . Goodbye .

A: informal
****
Q: Person1: Mary , this is your homeroom . It's 213 . Remember that .
Person2:What's a homeroom ?
Person1: You sit in there , listen to the morning announcement with other kids , and then you go to your classes .
Person2:Cindy , I'm scared .
Person1: But I have to go to my homeroom .
Person2:Do we have the same classes today ?
Person1: No .
Person2:Do you think the school can put us in the same homeroom ?
Person1: Stop worrying , Mary . You'll do just fine .

A:
informal
****