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: Yes, where would you like to go to? Sentence2: Is there an area you'd prefer to stay in? Sentence3: Yes, book that one please. Sentence4: No free parking is not necessary. Sentence5: I prefer a moderate price one. Sentence6: Your room is reserved, ref# UCVH6QPU . Is there anything else I can help you with today? Sentence7: Would you help me book a train for Thursday, please? Sentence8: Can I get the reference number for that booking? Sentence9: There are over 200 trains going to Cambridge on Thursday. Where will you be departing from? Sentence10: Your booking was successful. Your reference number is Z3NAOPSY . Sentence11: Is that for 2 people? And I need it for 5 nights starting thursday. Sentence12: I would like a cheaper hotel. Sentence13: I would like to go to Cambridge Sentence14: That narrows us down to about 19 trains. Do you have a time you would like to leave after or arrive by? Sentence15: Ok I Am going to book a cheaper hotel for you ,have a good day,thank you. Sentence16: There is nothing in the price range you mentioned. Would you be willing to stay at a cheap hotel or an expensive hotel? Sentence17: Not that's it. Thank you so much! Sentence18: In the east. With free wifi, please. Sentence19: Do you need free parking? Sentence20: I would like to leave after 15:45. Sentence21: Yes, please. I am also looking for a place to stay, ideally a hotel with a 4 star rating in the moderate price range. Sentence22: Then in that case, I recommend the TR0209 which departs from Kings Lynn at 16:11 and gets into Cambridge at 16:58. Would you like me to book it for you? Sentence23: I'm sorry, let's get your hotel choice fixed first. There is one cheap hotel - The Cambridge Belfry. It has free internet and parking. Can I book this one for you? Sentence24: I found 3 guesthouses matching that criteria, I would recommend the Carolina Bed and Breakfast. Located in the east, 4 stars, and has free wifi. Will this one work? Sentence25: I will be leaving from Kings Lynn. Sentence26: Ok. Thank you for choosing Cambridge Towninfo Centre. We hope you enjoy your stay. Question: Who has spoken the sentence 13? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Allenbell is in the east with a 4 star rating. It has free internet and parking. Would you like to reserve a room? Sentence2: Great, I have several options for you. Is there a particular area you'd like be? Sentence3: I need the place to be in the east part of town. Sentence4: I'm looking for a 4 star place to stay that has free wifi. Sentence5: We have 9 restaurants that meet your criteria. Did you have a particular area of town in mind? Sentence6: please and I need postcode and confirm number Sentence7: Same area as the hotel. I need a reservation for 3 at 17:30 on Sunday and please provide the reference number. Sentence8: Bye now, then. Have a nice day. Sentence9: I also need to book an expensive Chinese restaurant. Sentence10: No, that's all I need, thanks! Sentence11: Postal code is cb13js, before I book, how many people and nights and starting which day? Sentence12: I would like it for 3 people 2 nights starting sunday please. Sentence13: Yu garden is a good choice. I've booked a table for 3 at 17:30 on sunday. Reference number is FT3SRQ1R . Reservations are held for 15 minutes. Need anything else today? Sentence14: Reference number is : U1WO8E7E . Is there anything else I can help you with? Question: Who has spoken the sentence 2? (A) User (B) System
[A]:
Answer: (A) User