You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: I am looking for a train that will depart from Norwich on Sunday Sentence2: Sure thing! Your table is reserved. Your reference number is OY2LNXFW . Is there anything else I can assist you with today? Sentence3: I am traveling to Cambridge and would like to find a local restaurant. I want to arrive by train at noon. Sentence4: TR4202 is the one that leaves at 7:16 and it costs 14.08 pounds per ticket. Would you like me to book it for you? Sentence5: No, that will be all. Thanks! Sentence6: Hi there, let's start with the train arrival, where would you be travelling from? Sentence7: How about 7:16? What is the price? Sentence8: The copper kettle will be fine. Yes please book a reservation. Sentence9: Goodbye and have a good day. Sentence10: Yes that would be great. I am also looking for a place to dine for the night. Do you have any suggestions? Sentence11: Is the restaurant moderately priced? If so, please book a table for 5 at 18:00 and send me the reference number. Sentence12: My recommendation would be the Ugly Duckling, a Chinese restaurant in the centre of town. It is located at 12 St. Johns Street City Centre. Sentence13: No, I'm sorry the ugly duckling is in the expensive price range. The copper kettle serves british food and is moderately priced. Would you like a reservation for it? Sentence14: There are trains every hour on the :16 that will get you there by noon, beginning at 5:16. Which would you prefer? Question: Who has spoken the sentence 12? (A) User (B) System

Answer: Answer: (A) User

Question: 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

Answer: Answer: (B) System

Question: Sentence1: Is one of them in the centre area. I would like one close to the college. Sentence2: Sure, I would like the largest college available Sentence3: Unfortunately, I haven't found anything. Would you like me to search for another type of attraction, or another location? Sentence4: Thank you. Can you also find a turkish restaurant that is moderately priced? Sentence5: We'll try Efes, could you book me a table for 2 on Thursday at 11:15? I'll need the reference number also. Sentence6: gonville and caius college Area-centre Phone #-01223332400 Post code-cb21ta Address-trinity street Entrance fee-free Sentence7: There are two that match your requests. Anatolia and efes restaurant. Would you like me to book one for you? Sentence8: So happy I could help! Enjoy the rest of your day! Sentence9: You are all set at the Efes on Thursday at 11:15. Your reference number is NZ89K99X . Is there anything else I can help you with? Sentence10: Sure. Are there any colleges in the centre? Sentence11: Yes, there are 13 colleges located in the centre. Can I help you narrow down the results? Sentence12: They are both located in the centre. Efes restaurant is located at King Street City Centre. Would you like to reserve a table? Sentence13: No that is it thank you. Sentence14: Are there any entertainment attractions in the centre of town? Question: Who has spoken the sentence 5? (A) User (B) System

Answer:
Answer: (B) System