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

Input: Consider Input: Sentence1: Hi. Can you please help me find a restaurant that serves food from singapore ? I'd like it to be on the East side of town if possible. Sentence2: Thank you for using the Cambridge restaurant system. Goodbye. Sentence3: Yu Garden is located on the east part of town. Would you like the telephone and address? Sentence4: What is the address, phone number, and postcode? Sentence5: Can you help me find some Chinese food then? Sentence6: There are no restaurants serving Singaporean food on the east part of town. Sentence7: Thank you, goodbye. Sentence8: Yu Garden is located at 529 Newmarket Road Fen Ditton, C.B 5, 8 P.A, and the number is 01223 248882. Question: Who has spoken the sentence 3? (A) User (B) System

Output: Answer: (B) System

Input: Consider 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

Output: Answer: (B) System

Input: Consider Input: Sentence1: You have two options. Dojo Noodle Bar and J Restaurant both fit your specifications. Which of these would you like me to make a reservation for you at? Sentence2: I have 15 cheap places to dine. Another food preference perhaps? Sentence3: Glad I could help, enjoy your stay in Cambridge. Sentence4: The address and the post code is all I need. Sentence5: I can't book it but I can provide you with the address if you'd like. Sentence6: Yes, is there anywhere that you can play some sports near the restaurant? Sentence7: Not really- what about a cheap restaurant? What are my choices? Sentence8: There is none available, do you have another type of food? Sentence9: Thank you, that's all I need today. Sentence10: Can you book that for me. Sentence11: Hello, I'd like to have dinner in the centre, is there anywhere that serves Afghan food? Sentence12: Yes, that would be a good idea. Can you search for one that serves asian oriental food for me? Thanks a lot Sentence13: Dojo Noodle Bar sounds interesting. Can you get me the phone number and post code for them? Sentence14: The postcode is cb19ej, and the address is colville road, cherry hinton Sentence15: I have the cherry hinton village centre located at colville road, cherry hinton. Sentence16: Sure, the phone number is 01223363471 and the postcode is cb21rq. Is there any other information I can help you with today? Question: Who has spoken the sentence 7? (A) User (B) System
Output: Answer: (B) System