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: Booking was successful, the total fee is 450.6 GBP payable at the station . Reference number is : G368B2VI . Can I help with anything else today? Sentence2: I would like to stay in the centre of town please. Sentence3: TR0254 Leaves at 05:40, would you like me to book that for you? Sentence4: I will be departing from Birmingham New Street on Tuesday. Sentence5: The price is 75.10 pounds and it is a 163 minutes ride. Can I help you with anything else? Sentence6: Please book 6 tickets and send me the reference number. Sentence7: No thank you. Please tell me about the ticket pricing and time of travel Sentence8: Okay, the postcode is cb11ly. What else can I help with? Sentence9: No, not yet. I just need the postcode. Sentence10: Thanks for using Cambridge TownInfo centre. Have a great day! Sentence11: I'm looking for a train that goes to Cambridge and arrives by 08:45. Sentence12: The Gonville Hotel will meet all of your needs. Would you like me to book it? Sentence13: I found two expensive hotels, one in the centre and one in the south of town. Do you have a preference? Sentence14: Again, 3 star with free wifi. I don't care about the price. It has to be in the centre, though. Sentence15: That is all, thank you for your help today. Sentence16: Yes please. I need a 3 star hotel that offers free wifi Sentence17: I found 231 trains that fit your request. Where will you be departing from? Sentence18: What price range and what star rating are you looking for ? Question: Who has spoken the sentence 3? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: I'm looking for a train to depart Cambridge leaving on Wednesday, can you help me? Sentence2: Anatolia sounds great. Can you give me their address, postcode, and phone? Sentence3: There are 38 trains leaving from cambridge to peterborough. What time you would like to leave? Sentence4: I would like to leave after 14:00 and make a booking. Sentence5: Yes. Either Anatolia or Efes Restaurant would be a good choice. Would you like me to book you a table at one of them? Sentence6: There are over 200 trains departing Cambridge on Wednesday. What will be your destination? Sentence7: Can you recommend a good Turkish restaurant, moderately priced, in the centre of town? Sentence8: I would like to book for 5 people. Sentence9: Anatolia's address is 30 Bridge street City Centre, the postcode is cb21uj, and the phone number is 01223362372. Is there anything else I can do to help you? Sentence10: Your tickets have been reserved. The total will be 82.5 GBP, payable at the station, and your reference number is FSS5PPSG . Is there anything else I can help you with? Sentence11: I can book you on the TR 3587 leaving at 14:06 and arriving by 14:56. Would that be good? Sentence12: Yes,and the reference number as well, please. Sentence13: You are welcome. Have a great day! Goodbye! Sentence14: I will be glad to book this for you and get a reference number. Do you only need one ticket for yourself? Sentence15: I will be leaving from Cambridge. I need to go to Peterborough. Sentence16: No, that will be all thank you. Question: Who has spoken the sentence 5? (A) User (B) System

Answer: Answer: (B) System

Question: Sentence1: Sure, do you prefer the west or the centre part of Cambridge? Sentence2: loch fyne is an expensive place that serves sea food. can we book? Sentence3: Okay I have done that and their reference number is H2OPFSBQ . Sentence4: Thanks, lastly, I need a taxi to take me to the restaurant from the hotel, I want to get there before the booked time. Sentence5: Thank you, have a nice day. Sentence6: I'm also looking for a place to eat in the city centre. maybe bistro food? Sentence7: The cambridge belfry is available. Would you like me to book you a room? Sentence8: I don't care about the area but I need it to be cheap with free wifi. Sentence9: Sorry there are no restaurants in the centre of town serving bistro food. Sentence10: You're welcome. And thank you, you, too! Sentence11: Your taxi will be a red audi. Should you need to contact them, the number is 07971260313. Sentence12: Can you help me find a 4 star hotel to stay at? Sentence13: Done! Your reference number is CU4LPL6C . Do you need help with anything else? Sentence14: Yes. Let's say 15:00 on the same day, with the same group of people. Sentence15: Yes, please. I need four nights starting Sunday, for two people. Sentence16: Okay. What about one that serves seafood instead? Question: Who has spoken the sentence 1? (A) User (B) System

Answer:
Answer: (B) System