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

[Q]: Sentence1: That should do. I am also looking for a place to dine. The restaurant should serve Chinese food and should be in the expensive price range Sentence2: Can you help me find an interesting place to visit on the east side of town? Sentence3: Sure do, know of any interesting ones on the east side? Sentence4: Yes, I would like it to be in the east. Sentence5: That is all, thank you! Sentence6: cb13ef. Anything else? Sentence7: I can. Do you like museums? Sentence8: The Yu Garden has fabulous food. Can I book a table there for you? Sentence9: I have many choices. Do you have an area preference? Sentence10: I'm sorry, could I get the postcode to Cambridge Artworks? Sentence11: I'm sorry I have to go now! Bye! Sentence12: Absolutely. You can reach Yu Garden at 01223248882. Is there anything else I can help with today? Sentence13: I also need to get the phone number for the restaurant. Sentence14: Okay great. Glad I could be of help. Sentence15: We have the Cambridge Artworks, the Cambridge Museum of Technology, and several galleries. Sentence16: Thanks for contacting the Cambridge TownInfo Centre and have a great day! Question: Who has spoken the sentence 15? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: I am also looking for a place to stay at a 4 star hotel near the restaurant. Sentence2: I was able to book a room for 5 people, 5 nights. Your reference # is 5DD52JOS . Can I help you with anything else today? Sentence3: I prefer something cheap. Sentence4: Yes, for 5 nights on the same day. I also need the reference number. Thanks! Sentence5: Lets go with charlie chan, I would like to to book a table for 5 people at 11:00 on wednesday. Sentence6: Okay, have a great day! Sentence7: Need a place to dine, chinese near centre. Sentence8: The Alexander Bed and Breakfast is cheap, would you like to book it? Sentence9: There are three options, charlie chan, rice house and golden house. Can I book you for one of those? Sentence10: Are either option cheap? Sentence11: There are two located in the same area. alexander bed and breakfast and university arms hotel? Sentence12: I think that is all I need today. Thank you for all your help. Sentence13: I have 10 places. Would you like a certain price range? Sentence14: Your booking was successful, the reference number is B1FIKA09 . Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Actually, I'd like some information about an attraction in the centre dealing with multiple sports. Sentence2: I'd like some information about the University Arms Hotel. Sentence3: I could not find any attractions for multiple sports in the centre of town. Is there perhaps another attraction type or area of town I could search for you? Sentence4: No I just needed to know the information. Thank you, that's all I needed. Sentence5: There are 5 colleges in the centre. Corpus Christi or Downing College are very nice. Would you like more information about one of them? Sentence6: Yes, it is a hotel. Any other questions that I can help with today? Sentence7: I never got the address for Corpus Christi College. Could you give that to me? Sentence8: Great, and what is the address? Also, can I just confirm that University Arms Hotel is actually a hotel? I don't like guest houses. Sentence9: Sure, their phone number is 01223338000. There will be an entrance fee of 2 pounds. Sentence10: Yes that's everything, thank you. Goodnight. Sentence11: If I can just get the address of the University Arms Hotel please. Thanks. Sentence12: Have a great visit and please call back if you need additional help. Sentence13: Sure, the address listed for University Arms is regent street, postcode cb21ad. What else can I help with today? Sentence14: Can you give me the phone number and address for Corpus Christi College? Sentence15: Thank you for contacting the Cambridge TownInfo centre. Goodbye. Sentence16: How about a college in the same area? Sentence17: Certainly! The address is king's parade, is that all you needed? Sentence18: sure. it is 4 stars and expensive. they have internet, free parking & located in the center on regent street. phone number 0122331241. shall i make a reservation? Question: Who has spoken the sentence 13? (A) User (B) System
[A]:
Answer: (B) System