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

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
Answer: (B) System

Sentence1: Yes I was able to do this and the reference number is J7S65ALV . Sentence2: Ok. Thank you and good bye. Sentence3: i need information of a hotel called allenbell. Sentence4: I am also looking for an entertainment place. Sentence5: Sure, great guesthouse on the east side. 4 stars but still cheap. Sentence6: Would you like the attraction in the same area as the guesthouse? Sentence7: My favorite is Nusha. It's in the south. Unfortunately, I don't have the information on their entrance fee, but I can give you their phone number, if you like. Sentence8: That would be fine. I think that's all I need. Thanks for your help! Sentence9: That doesn't really matter. What's the entrance fee and area for your favorite entertainment place? Sentence10: Could you make a reservation for 8 people for 5 nights starting Tuesday? I will also need the reference number. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Okay, you are so welcome! Bye! Sentence2: How about the Funky Fun House on Mercers Row? Sentence3: OK, you have a table for 1 at The River Bar, reference #G2XQJ7B5 . Can I help you with anything else today? Sentence4: Thanks, that's all I needed today. Goodbye! Sentence5: I am also looking for a place to go for some entertainment in the east. Any Recommendations? Sentence6: Great, thanks for that. Are you able to also book me a taxi so I can commute between the two places? Sentence7: Yes, what time are you wanting to leave? Sentence8: You can call them at 01223304705. The address is 8 mercers row, mercers row industrial estate. Their entrance fee is unlisted Sentence9: Sure, can you give me the address, phone number and entrance fee. Thanks. Sentence10: There is one restaurant that serves modern european at a cheap price, it is the river bar steakhouse and grill in the centre of town. Would you like more information? Sentence11: im looking for a place that serves morden european food and with a cheap price range Sentence12: I have reserved you a taxi. they will be in a blue audi with the phone number 07033607984 if there is any issues. Sentence13: Could you book me a table there for 1 on Friday at 11:45? Sentence14: Well before 11:45 to make sure I don't miss the reservation would be good. Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User