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

Q: Sentence1: I would like a four star hotel, and I don't need free parking. Sentence2: Certainly, there are 44 attraction in the town centre, do you have a type of attraction you would like to visit? Sentence3: I don't have any in particular. What would be the highest rated attraction in that area? Sentence4: There are 32 hotels with free wifi, do you have any other things you require in a hotel? Sentence5: I am looking for places to go in the centre. Sentence6: Sounds great. Can I book 8 people for 2 nights starting Tuesday? Sentence7: there are a total of 79 attractions in Centre what type of attraction that you are looking for? Sentence8: No. That's all I needed. Thanks! Sentence9: Are there any museums available? Sentence10: Could you recommend me a hotel that is cheap? Sentence11: I would recommend the Acorn Guesthouse which is 4 stars, moderately prices and offers both free wifi and parking. Sentence12: I am looking for a hotel with free wifi. Sentence13: That sounds great. Can I get the postcode for Castle Galleries? Sentence14: Hmm, let me see...I think maybe a moderately priced 4 star hotel might be better. Do you show any availabe? Sentence15: Yes the postcode is cb23bj. Is there anything else I can help you with? Sentence16: I don't have rating information, but Castle Galleries in nice, and admission is free. Would that interest you? Sentence17: Great. Thank you for contacting Cambridge Towninfo Centre. Have a great day. Sentence18: How about a and b guest house, unless you have any other specifics. Sentence19: You are all booked at the Acorn Guest House. Your reference number is LXMFRZLR . Do you need assistance with anything else? Sentence20: How about the autumn house? It has 4 stars, is in the cheap price range and has internet. Question: Who has spoken the sentence 1? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: I'm sorry, but there are no restaurants that meet your criteria. Would you like to broaden your search? Sentence2: There are 5 places that serve European. Did you prefer modern European, or just European food in general? Sentence3: Yes, please. I will need 8 tickets, and please give me the reference number once you book. Sentence4: What about a restaurant that serves european food? I'd like the phone no. and postcode to that, please. Sentence5: Sounds lovely. Thank you so much for all of your help! Sentence6: How about the Galleria? Their phone number is 01223362054 and the address is 33 Bridge Street, the postcode is cb21uw Sentence7: What time do you want to depart? Sentence8: I also need a Thai restaurant in the moderate price range. Sentence9: There is only one train that would meet your criteria closely and it leaves at 11:50 and arrives in Ely at 12:07. may I book that for you? Sentence10: I have successfully booked you 8 tickets. Your reference number is 0YY5WZQ6 . Is there anything else you need? Sentence11: First, may I confirm that your departure site is Cambridge? Sentence12: Just european food in general, please. Sentence13: hi I want a train to Ely arrived by 13:45, can you help me do that? Sentence14: Thank you for using this system. Sentence15: That is correct. Sentence16: Any time is fine as long as it's on Saturday. Question: Who has spoken the sentence 11? (A) User (B) System

A: Answer: (B) System
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Q: Sentence1: The phone number is 01223334200. I can also tell you that there is no entrance fee and its located in centre on saint andrew's street. Sentence2: Perfect. I'll need 2 tickets. Sentence3: Great, can you give me the reference number. Also can you give me some information on emmanuel college please? Sentence4: I have to get to cambridge from london kings cross for a family matter, can you help me book a train? Sentence5: Your reference number is : TD9C5XQU . What else can I do for you today? Sentence6: Yes, I can help. What day do you need to leave? Sentence7: TR1681 leaves at 19:17 and arrives 51 minutes later. How is that? Sentence8: I would like to leave on Sunday. Sentence9: Can you give me the phone number, entrance fee, and address of emmanuel college, please? Sentence10: I would like to leave after 17:15 on sunday. Sentence11: I will book that for you now. Sentence12: Is there a certain time you want to leave after or arrive by? Question: Who has spoken the sentence 4? (A) User (B) System

A:
Answer: (A) User
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