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: Perfect, I have train TR1472 that meets your criteria, would you like me to book a ticket for you? Sentence2: I can help you with that. Where are you traveling from? Sentence3: Book it for 3 people. Sentence4: Sure. Your train is booked. The fee will be 30.29 GBP and your reference number is 7FGDRE1Q . Sentence5: I need to find a place to stay as well. Can you help? Sentence6: I need to find a train into Cambridge that will arrive by 09:15. Sentence7: I will be leaving the Stansted Airport on Thursday. Sentence8: I need to know what you're looking for first. Question: Who has spoken the sentence 2? (A) User (B) System

Answer: Answer: (A) User


Question: Sentence1: Happy to be of service. Have a wonderful day! Sentence2: Ok. I was able to book for 4 nights. Your reference is DTUFTTJP . Can I help with anything else? Sentence3: Yes, for 5 nights beginning Wednesday for 1 guest please. Sentence4: I am also looking for information about a restaurant called Zizzi Cambridge. Sentence5: Can you please repeat the phone number and provide the address. Thank you. Sentence6: The Autumn House is located at 710 Newmarket Road. Would you like for me to book this for you? Sentence7: I was unable to book, could you please choose another day or pick a shorter stay. Sentence8: Hello, I am looking for a certain hotel in Cambridge called the autumn house. Sentence9: No, I think that's all I need right now. Thanks very much for your help! Sentence10: How about 4 nights instead of 5? Sentence11: Zizzi Cambridge serves Italian food and is cheap. The phone number is 01223365599, or should I book a table for you? Sentence12: The phone number is 01223365599 and zizzi cambridge is located at 47-53 Regent Street postcode cb21ab. Can I help you with anything else? Question: Who has spoken the sentence 4? (A) User (B) System

Answer:
Answer: (A) User