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

[Q]: Sentence1: Sure. What area would you like to stay in? Sentence2: yes postcode is cb39lh Sentence3: I'd like to stay on the westside, at a place with free parking and WiFi. Sentence4: Can you help me find a moderately priced place to stay? Sentence5: There is the Hobsons House. It is nice and is a 3 star guesthouse. Sentence6: Could you give me the postcode. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: I am interested in finding a great nightclub to take a friend to. Sentence2: I've booked a table for 5 on Monday at 17:30. The reference number is MUBJSMLX . Is there anything else I can help you with? Sentence3: I have found 4 restaurants. Do you have a preference of area? If not that Kohinoor in the centre is very popular. Sentence4: Great that was all that I needed today, thank you. Sentence5: Cambridge has lots of great options. Club Salsa is quite popular and is in the centre. Sentence6: I have arranged for a black Honda to have you arrive at Kohinoor by 17:30. The contact number for the Taxi is 07997403672. Is there something else I can assist with? Sentence7: That sounds great. How much is the entrance fee? Sentence8: Perfect, can you also help me find a place to eat that is cheap and serves Indian food? We are looking to accommodate 5 people at 17:30 on Monday. Sentence9: Just book it on Monday please, for 5 at 17:30. Sentence10: Perhaps their phone number? Sentence11: The phone number is 07782218745. Sentence12: The Club Salsa entry fee is 5 pounds. Can I help with anything else? Sentence13: You're welcome! Have a good day. Sentence14: We need a taxi from Club Salsa that will get us to Kohinoor in time to eat. Can you make that happen? Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: How about an art museum? Sentence2: Yes, i am also looking for museums to visit in the centre of town. Sentence3: cambridge contemporary art has free entrance. Their phone number is 01223324222. Is there anything else I can help you with? Sentence4: I am looking for a place to stay on my upcoming visit. I can't wait to see some of your local tourist attractions. Sentence5: Get me one in the West place Sentence6: The Cambridge Art Museum is very popular and has no entrance fee. Is there anything else I can assist you with? Sentence7: Do you have their phone number and how much is the entrance fee? Sentence8: I am looking for a moderate priced 3 star hotel with free parking and free WiFi. Sentence9: Great, have a terrific stay! Sentence10: There are lots to choose from in the centre. Are you interested in art, archaelogy, antiques or history? Sentence11: Your reservation has been confirmed for 7 people staying 4 nights at the Hobsons House. Your reference number is KPO3GJ93 . Is there anything else I can help you with? Sentence12: I have found one in the south, the north and the west. Do you have a preference? They are all very comparable. Sentence13: Nope, that'll be all for today. Thanks so much for your assistance, you've been very helpful. Sentence14: The Hobsons House meets your criteria. Is there anything else I can do for you? Sentence15: Can you tell what area you will be staying in? Sentence16: Yes, can you reserve a room for me. There are 7 of us and we want to stay for 4 nights arriving on Sunday. Question: Who has spoken the sentence 15? (A) User (B) System
[A]:
Answer: (B) System