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: Hi , I have a doctor ' s appointment scheduled with Dr . Smith , and I need to change it .
Person2:What day did you have it scheduled for ?
Person1: My appointment was on Tuesday .
Person2:What time was it scheduled for ?
Person1: It was for two o ' clock in the afternoon .
Person2:I see your appointment . What day would you like to switch to ?
Person1: I would like to switch it to next Friday .
Person2:What time would you like ?
Person1: I would like to come in at 10
Person2:Fine , I will pencil that in right now . We will see you then .
[EX A]: formal

[EX Q]: Person1: Can I still get tickets for tonight's performance ?
Person2:The balcony is still available .
Person1: Aren't there any other seats ?
Person2:No , I'm afraid that's it .
[EX A]: formal

[EX Q]: Person1: Does Mr . Schmidt know he's going to become a father ?
Person2:No , and I have no way of getting ahold of him ! There's no phone where he's at !
Person1: Well , he has a surprise waiting for him when he gets back , doesn't he !
Person2:My older sister Judy will be here soon to help . She already has a boy and a girl of her own ...
Person1: I just saw a red van pulling into the driveway . Is that her ?
[EX A]:
formal