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

Example Input: Sentence1: Sorry about that, i'm leaving from norwich. Sentence2: Brookshite? Can you please repeat that? Sentence3: You are more than welcome! Sentence4: Ok. I can help you find a train. Where will you be departing from? Sentence5: ive boked that for you trainID departure destination day leaveAt arriveBy price duration book (optional) TR9900 norwich cambridge friday 05:16 06:35 17.60 pounds 79 minutes Sentence6: Thank you for your help Sentence7: I will be leaving from Brookshite. Sentence8: You're all set! The reference number is 44LHUSZT . Sentence9: I'm looking for a train going to cambridge. Sentence10: Yes please book that and I need the reference number. Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: 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
Example Output: Answer: (B) System

Example Input: Sentence1: In the east please. Sentence2: Thank you. That is all that I need. Sentence3: Hi, I am planning a trip and am looking for a particular attraction. Sentence4: Yes please book for 1 person at 14:00 on monday. Sentence5: Can you try indian food please? Sentence6: What type of attraction are you looking for? Sentence7: Expensive Polunesian. Sentence8: Yes, I can. It is located in the centre area. Is there anything else I can answer for you? Sentence9: I also need a restaurant. Sentence10: I'll be glad to help you find one. What kind of restaurant do you have in mind and on what side of town? Sentence11: sitar tandoori is my all time favorite. can i book? Sentence12: I have booked you a reservation at the Sitar Tandoori for Monday at 14:00 for 1 person. The reference number is 5I0ZWPOT . Is that all today? Sentence13: It's called the ADC theatre. Can you tell me what area it's in? Sentence14: I'm sorry, I'm not showing any expensive polynesian restaurants in the east area of town. What about another type of cuisine or perhaps another area of town? Sentence15: Thank you for letting us assist you today! Enjoy your visit! Sentence16: We have 9 restaurants in the east. What kind of food would you like? Question: Who has spoken the sentence 12? (A) User (B) System
Example Output:
Answer: (A) User