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

Q: Sentence1: We have nine expensive dining establishments on the west side. Cuisines offered are Thai, Indian, European, and British. Do you have a preference? Sentence2: Thank you. Can you please give me the reference number? Sentence3: The reference number is 5WHDPGHW .. Is there anything else I can assist you with? Sentence4: Okay I booked a table for 4 at 15:00 on Saturday at the Graffiti, an expensive British restaurant in the west area of town. Sentence5: I am interested at eating at an expensive place in the west part of town. Sentence6: No that will be all. Thank you so much for all of your help! Sentence7: Excellent. Have a good rest of your day! Sentence8: No I don't have a preference. I want to book for four people at 15:00 on Saturday. Question: Who has spoken the sentence 5? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: It is free admission into the King's college. Sure I can help with that. What is your price range? Sentence2: There is pizza express it's moderately priced, would you like more information or for me to book it for you? Sentence3: That was all I needed, thank you. Sentence4: I was able to book your table. The Reference number is : WA5JKA4G . Is there anything else you needed? Sentence5: Yes. Do you know what their entrance fee is? Also, I need some help finding an Italian restaurant in the centre area. Sentence6: I don't have a price range preference. Sentence7: Thank you! Sentence8: I also need a taxi to travel between King's College and the restaurant. Sentence9: Yes please. I would like the reservation for Thursday at 15:00 for 2 people. Sentence10: I am looking for King's College. Sentence11: May I help you with any thing else? Sentence12: thanks for using our services and welcome anytime Sentence13: Booking completed! Booked car type : blue tesla Contact number : 07982639539 Sentence14: Yes, King's College is in the centre and located on King's Parade. Their phone number is 01223331100. Question: Who has spoken the sentence 8? (A) User (B) System

A: Answer: (A) User
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Q: Sentence1: I'll be departing from Norwich on Sunday. Sentence2: Have a nice day. Sentence3: There are many trains to Cambridge. Where will you be departing from? Sentence4: Ok, there doesn't appear to be any trains leaving then. Could you leave later? Sentence5: I am looking for a train to Cambridge please. Sentence6: Yes. can you tell me the total travel time as well? Sentence7: I apologize for the earlier confusion. We have several trains that will meet your needs. TR6419 departs Norwich on Sunday at 11:16. Will that work for you? Sentence8: It is going to be 79 minutes total. Sentence9: I can leave at 10:45. Sentence10: Great, that's all I need. Goodbye! Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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