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: We're going dancing tonight .
Person2:Count me out .

A: informal
****
Q: Person1: Professor , can you help me add your class ?
Person2:You have to bring me an add sheet to sign . Do you have one ?
Person1: No , I will have to get an add sheet .
Person2:You must take the signed add slip to the Admissions and Records Office to add the class . Do you know where that is ?
Person1: No , I don't know where that is .
Person2:The office is in front of you as you cross the quad . The signs in the hallway will tell you where you need to be .
Person1: I think I can find it .
Person2:You'll find it easily . Make sure you add the class and then we will look at the roll sheet later to make sure that you were added on .
Person1: Thank you for letting me add your class .
Person2:To drop a class , you need to do the same thing with a drop slip . Good luck !

A: formal
****
Q: Person1: Can you tell me about a nice restaurant to go to ?
Person2:Of course ! How much would you like to spend on your meal ?
Person1: My date is quite sophisticated . She would expect nothing less than the best .
Person2:Well , how about our own hotel restaurant ? It's conveniently located and has a three-star rating .
Person1: That's a good idea , except I want to go out , not stay in . Something else , maybe ?
Person2:Well , how about Gramercy Tavern ? It's a very popular tourist spot , with great food and music .
Person1: That sounds good ! Could you call them to see if I can get a reservation ?
Person2:Of course , sir . You've made a good choice .

A:
formal
****