You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

[EX Q]: Sentence1: Are you sure? I'd really like some Austrian food. Sentence2: Yes I am sure. However, I do have a number of restaurants listed as serving European food. Would you like information on these? Sentence3: Thank you, let us know if you need any more help with anything. Sentence4: The phone number is 01223307030. The address is Quayside Off Bridge STreet and the postcode is cb58aq. Can I book a reservation? Sentence5: Yes please. I prefer the centre of town if possible. Sentence6: I would like for that to be cheap as well. Sentence7: No, I'm all set, thanks. Goodbye! Sentence8: Hi, I'm looking for a cheap austrian restaurant. Sentence9: Sounds good. Could you give me the number? Also, the address and postcode. Sentence10: The River Bar Steakhouse and Grill located in the Centre has cheap Modern European food. Would you care for that? Sentence11: There are a number of European options in the town centre. Do you have a price range? Sentence12: I'm sorry but I don't have any Austrian restaurants? Would you like to try a different cuisine? Question: Who has spoken the sentence 5? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Thank you. May I have a street address for the police station? Sentence2: welcome. at your service next time Sentence3: Thank you goodbye Sentence4: Certainly. Their address is Parkside, Cambridge. Can I assist you further? Sentence5: I want to know where I would find the Parkside Police Station. Could you tell me? Sentence6: Their postcode is CB11JG, you can reach them at phone number 01223358966. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Italian food sounds good as well, how about that? The area and price must stay the same. Really anything is fine I don't care. Sentence2: christ's college is a beautiful college. You would love it ! Sentence3: I'm sorry but I have no Chinese in this area. Could we try another area or type of food? Sentence4: Great, may I please have the address? Sentence5: It does not matter. Sentence6: Okay! What part of town would you like to visit? Sentence7: could you provide some information about the colleges you have in town? Sentence8: Christ's college is in the centre of town. Their address is saint andrew's street Sentence9: Thanks. That is all I need for today. Bye. Sentence10: Bye, have a good time. Sentence11: Well then find me another type of expensive restaurant. Book it for 1 person for Saturday at 14:30. Sentence12: I'm sorry, there are no expensive Italian restaurants in the area either. How about a cheaper option? Sentence13: Booking completed! Booked car type : grey skoda Contact number : 07328070350 Sentence14: We have 14 places with all kind of food type, any preference? Sentence15: Yes, I'll also need a taxi to commute between the two locations. I'll need to arrive at the restaurant by the dining time. Sentence16: Hm, I guess a chinese place would be good. Sentence17: Done! I have booked you a table at Travellers Rest, which will be reserved for 15 minutes. The reference number is 86LRTWFF . Can I help you with anything else? Sentence18: i am looking for a place to dine. The restaurant should be in the west and should be in the expensive book a table for 1 people at 14:30 on saturday Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]:
Answer: (B) System