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

Sentence1: the cambridge and county folk museum is located 2-3 castle street Sentence2: Yes, that would be great. There will be 7 of us. Sentence3: Do you have any 0 star places? Sentence4: Is there one in the moderate price range? Sentence5: I'd like to start on Friday please and stay for 3 nights. I will also need the reference number. Sentence6: Thanks, can you also give me the entrance fee, phone number, and postcode? Sentence7: Yes, Cityroomz is in the moderate price range. Would you like to make a reservation? Sentence8: Okay. Would you like to narrow it down by the area, price range, or type? Sentence9: I'd be happy to make a reservation for the 7 of you. I will need to know what day to start your reservation and for how many nights, please. Sentence10: I also need a place to stay. Sentence11: That will be all, and thanks so much for your help. Sentence12: I have 2 guesthouses and 1 hotel that are 0 stars, do you have a preference or want a particular area of town? Sentence13: I'm looking for the cambridge and county folk museum. Sentence14: The fee is 3.5 pounds, the number is 01223355159, and the code is cb30aq. Sentence15: Have a nice day. Sentence16: Your reservation for 7 people at Cityroomz this friday for 4 days 3 nights was successful. Your Reference number is : SOF4G9MY . Anything else I can do for you? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: The post code is cb23dz. Sentence2: I need to arrive at 17:45. Sentence3: I will travel Tuesday. Sentence4: Thats perfect. What is the price and travel time on this train? Sentence5: I also need a train, to cambridge, I want to arrive by 17:45. Sentence6: There's a train that leaves at 13:17, want that one? Sentence7: What day do you need the train? Sentence8: Can I help you with anything else? Sentence9: Is there a time you need to leave or arrive by? Sentence10: It is 17.90 pounds and takes 60 minutes. Would you like me to book this for you? Sentence11: No thanks, just gathering information, that is all I need. Sentence12: That is all I needed today. Sentence13: Could you please provide me with the postcode. Thank you! Sentence14: As long as it arrives in Cambridge by 17:45 and departs from Broxbourne that will work. Sentence15: Glad I could help come backk if you need anything else Sentence16: I am looking for information about the museum of archaeology and anthropology. Sentence17: I have one arriving at 7:32 will this work for you? Sentence18: That museum is located over at University of Cambridge, downing street. It's free to visit. Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: I suppose, please give me a price and train ID. Sentence2: I would be happy to do that. I just need to know what day you would like your reservation to start. Sentence3: Which day would you like the reservation to start? Sentence4: Before we continue, I need the reference number for my hotel booking. Sentence5: The train id is TR1699 and the price is 12.80 pounds. How many tickets would you like to purchase? Sentence6: The closest train would be TR1699 departing Stevenage at 21:54 arriving Cambridge 22:43. The ticket would be 12.80 GBP. Shall I book this for you? Sentence7: 1 ticket for train ID TR1699 from stevenage to cambridge at 21:54 has been booked. Your reference number is W6J8TUAC . Have a nice day. Sentence8: Can you tell me the hotels that meet that criteria first? I need a 4-star guesthouse with parking. Sentence9: monday, please Sentence10: So is there any train on Monday? Sentence11: One ticket, please. Sentence12: No that will be all for today. Thank You! Sentence13: Are there any trains from stevenage to cambridge on Monday leaving at 21:00? That is what I'd prefer. Sentence14: It looks like there are only trains on Friday and Saturday from Stevenage. Would another day do? Sentence15: Hi I would like to find a place to stay that has a guesthouse and free parking. Sentence16: Also on Monday I am looking for a train destined for Cambridge. I need to depart at 21:00 from the Stevenage. Sentence17: Is there anything else I can do for you? Sentence18: Reference number is : DB9SPLT7 . Sentence19: Acorn Guest House has all the criteria you need. Would you like me to book that? Sentence20: Your booking was successful for 4 people at the Acorn Guest House, staying 2 nights starting Monday. Your reference number is : DB9SPLT7 . Is there anything else I can do today? Sentence21: Book it for 4 people staying for 2 nights and give me the reference number. Sentence22: There are two. One leaving at 21:54 and the other leaving at 23:54. Question: Who has spoken the sentence 21? (A) User (B) System

Answer: (B) System