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: Unfortunately, I am not seeing any 4 star hotels that are moderately priced in the centre. We could try a cheaper hotel or a guesthouse? Sentence2: Sure do. Their address is fulbourn, postcode cb15dh. Phone number is 01223295264, and entrance is free. It's a museum on the Eastside. Sentence3: Nevermind. Do you have info on gallery at twelve a high street. Sentence4: Thank you very much for your help, have a nice day. Sentence5: Thank you, enjoy your stay in cambridge. Sentence6: Of course. We have so many attractions! What part of town will you be in? Sentence7: I will be visiting Cambridge soon and can't wait to see some of your local attractions. I do need your help with some information. Sentence8: I'm sorry, but there are no cheap hotels in the center of town, either. The only cheap hotel is on the west side. Sentence9: How about in the cheap price range? Sentence10: I have two options. Would you prefer a hotel or a guesthouse? Sentence11: I need a 4 star room in the centre please. Sentence12: A hotel in the moderate price range. Thank you! Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User


Question: Sentence1: Great, have a wonderful day and enjoy your taxi ride, thank you! Sentence2: What time would you like to arrive? Sentence3: No, that is all I need today. Thanks! Sentence4: i want to book a taxi. The taxi should depart from la Margarita and should go to riverboat Georgina. Sentence5: I have a white tesla booked. The contact number is 07032807056. Anything else today? Sentence6: I would like to arrive by 17:15. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User


Question: Sentence1: It has been booked and your Reference number is: B02EELPU . Is there anything else I can do for you? Sentence2: I need a train for Saturday at 13:00 and I will be traveling from Cambridge to London kings cross. Please book it for 7 people. Sentence3: It leaves right at 13:00. If you'd like to leave later, the next train departs at 15:00 Sentence4: Yes, my apologies, but can you confirm that the TR4003 train leaves after 13:00? Sentence5: No, that is all. Thank you for the help. Sentence6: Okay, thank you for calling the Cambridge TownInfo centre. Have a great day. Sentence7: You are all booked for the TR4003 train. Price is 132.16 GBP. Reference number B02EELPU . Is there anything else i can help you with? Sentence8: The 13:00 train is perfect. Please book 7 tickets. Thanks. Question: Who has spoken the sentence 1? (A) User (B) System

Answer:
Answer: (B) System