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

[Q]: Sentence1: Hmm. What about museums? Sentence2: Booking completed! Your contact number is 07349924614. The car type is a black ford. Can I help you with anything else? Sentence3: I don't care about wifi or parking. To be honest, I don't care what area it is in, either. What would you pick? Sentence4: Cambridge and county folk museum is available, would you like that? Sentence5: Can you tell what time you want to be picked up and at which location? Sentence6: I'm also looking for an attraction preferably on a boat in the west. Sentence7: Sure. That sounds good. Can I get their address and postcode please? Sentence8: Thanks! I also need a taxi between both locations, please. Sentence9: Wow that was fast thanks! No, that is all I needed. Hope you have a wonderful day. Sentence10: Sounds nice. What is the address and postcode please? Sentence11: I want to leave the hotel by 23:15. Sentence12: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence13: I'm looking for a moderately priced guest house. Can you recommend one? Sentence14: There are 15 options. Do you have a specific area you would like to stay in? And are you interested in wifi and parking? Sentence15: I would go with the Acorn Guest House if I were choosing a moderately price guesthouse. Sentence16: Sure their address is 2-3 Castle Street and the postcode is cb30aq Sentence17: The address is 154 Chesterton Rd, the postal code is cb41da, is there anything else that I can assist with? Sentence18: There are no boats in the west, can I try something else for you? Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Price doesn't matter. Do they have free parking? Sentence2: I need an expensive restaurant in west Cambridge. Sentence3: No I just need the reference number for the reservation for 3 people on Sunday at 16:15. Sentence4: Give me the address and phone number for the one you most recommend Sentence5: There are 33 options for lodging in town. Do you have a preference for area, price range, type, or star rating? Sentence6: No I am good! I do not need a taxi. Sentence7: Yes, both the establishments offer free internet as well. Sentence8: Do they have free wifi also? Sentence9: I would like a place to stay Sentence10: There are two places that meet your search criteria. Did you have a price range in mind? Sentence11: I have 5 restaurants that match what you're looking for. Would you like to try Tandoori Palace? Its located at 68 Histon Road Chesteron. Sentence12: No I believe we have got everything done. Goodbye. Sentence13: Do they offer free parking? Sentence14: I want Indian food. Sentence15: In terms of type, I want a hotel. And I'd like 4 stars and wifi as well, with a location in the south Sentence16: Happy to help. Have a great day. Sentence17: Yes, they do offer free parking. Can I book a room for you? Sentence18: We have several to choose from. Did you have a specific cuisine in mind? Sentence19: Sure. The reference number is CBAGG03S and your table will be reserved for 15 minutes. Is there anything else today? Sentence20: No thank you. I have all the info I need. Sentence21: Rosa's Bed and Breakfast is the one I recommend. It's address is 53 Roseford Road and it's phone number is 01223512596 Sentence22: Yes as a matter of fact they do. Sentence23: Will you need a taxi to get to tandoori palace? I can help with that. Sentence24: Can I help you with anything else today? Sentence25: I will book that for you. Would you like the phone number in case you change your mind? Sentence26: Sure, can I get a reservation for Sunday at 16:15? I will need a table for 3. Question: Who has spoken the sentence 16? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: The price for the TR2514 is 7.84 pounds per ticket. Would you like to book a seat? Sentence2: I have train TR2514 that departs at 10:11 and arrives by 10:58. Would that be something that would work for you? Sentence3: What day would you be traveling and where are you going to? Sentence4: No, that is all I needed, thank you for your help! Goodbye. Sentence5: I'll be going to Cambridge on the same day as my stop at Travellers Rest. Sentence6: There are 9 expensive restaurants in the west. There are British, European, Indian, and Thai food to choose from. Which would you prefer? Sentence7: Please book for 1 person at 16:30 Sentence8: Yes, that would be great. What is the price for that? Sentence9: I'm looking for an expensive restaurant in the west. Sentence10: You're welcome. It has been a pleasure helping you today. Have a great trip! Sentence11: At what time on Saturday would you like a table reserved? Sentence12: I also need a train departing from Kings Lynn arriving by 11:15. Sentence13: I would love something that has British food. Sentence14: It has been booked, your reference number is Q1IQNSL8 Sentence15: I think I'll try Travellers Rest. Could you book me a table there for Saturday? Sentence16: You should try either Graffiti or Travellers Rest then. Would you like more information about these? Question: Who has spoken the sentence 11? (A) User (B) System
[A]:
Answer: (B) System