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

[Q]: Sentence1: So, to clarify, you want a taxi from the University Arms to Bangkok City at 16:00, correct? Sentence2: No, that's all. Thank you. Sentence3: What price range and in what area? Sentence4: What type of hotel is the University Arms? Sentence5: its postcode is cb21ad. is that all? Sentence6: It's a 4 star hotel. In the centre and expensive as you requested. Sentence7: I am looking for an expensive place in the centre area with free wifi? Sentence8: I would like to book a taxi that can commute to both places, It would need to arrive by the booked time. Please provide contact and the car type. Sentence9: Your cuisine options are: British, European, Indian, and Thai. Sentence10: Yes I would like a table for 4 people at 16:00 on Saturday. Sentence11: Reference number is : FJVATJEE . Is there anything else? Sentence12: I'm sorry, make that the centre of town. A Thai restaurant would be fine. Sentence13: Yes, thank you. Sentence14: I found Bangkok City. Would you like me to book a table? Sentence15: Have a nice day. Sentence16: I am looking for something expensive in the west please. Sentence17: I have two options. The Gonville Hotel which has three stars, and the University Arms Hotel which has four stars. Would you like to make a booking? Sentence18: Done! You'll be picked up in a yellow Tesla, and the contact number is 07044662222. Can I help you with anything else? Sentence19: Can you help me locate a place to eat tonight? Sentence20: No thank you. What is the University Arms Hotel's postcode? Question: Who has spoken the sentence 17? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Might I suggest the Autumn House. It is a cheaper guesthouse that offers both free parking and free internet. Would you like more info for them? Sentence2: It really doesn't matter. I don't need internet. I just for sure want a 4 star place. Sentence3: Thank you! Can you also get me a train going to Cambridge that day? Sentence4: Sure. There are six different options in that area. What were you looking for as far as price range and amenities? Sentence5: Is there anything else that you need? Sentence6: I need a 4 star hotel in the east, please. Sentence7: I think this is what I needed. Thanks. Sentence8: Sure! I just need to know where you plan on departing from and what time you'd like to leave. Sentence9: Booking was successful. Reference number is : 544D87NG . Sentence10: I need a room for 4 for 4 nights starting on Tuesday. Question: Who has spoken the sentence 3? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: i want to confirm this, do i book for 1 person? Sentence2: The south part of town,please Sentence3: I have your booking completed and your reference number is: Z38G5W6W . Is there anything else I can help you with? Sentence4: I actually needed a room for 8 and 4 nights starting from Friday. Sentence5: You are welcome, have a great day. Sentence6: Nope, that's it! Thank you so much. Sentence7: book for two Sentence8: Yes what area are you looking to stay in? Sentence9: The museum is located on Sidgwick Avenue in the west and it is free to get in. Do you need any other information? Sentence10: Can you give me information about the museum of classical archaeology? Sentence11: Thank you! Can you help me find a place to stay while I am there? Sentence12: the aylesbray lodge guest house is moderately priced and is located at 5 mowbray road. would you like me to make a reserevation? Sentence13: Yes I need the phone number. Sentence14: Yes. I would like to make a reservation for 8 for Friday. Sentence15: We are showing to guest houses in the south area. Do you have a price preference? Sentence16: Okay I've fixed your reservation and the reference number is XTX3KFP2 . Is there anything else you need? Sentence17: The phone number is 01223335153. Sentence18: No, I don't care about the price of the place. Sentence19: I would like a star of 4, free parking and free wifi. Sentence20: We have 4 options, any other preferences to help narrow things down? Question: Who has spoken the sentence 5? (A) User (B) System
[A]:
Answer: (B) System