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

Example Input: Sentence1: I am sorry there is nothing that meets that criteria. Is there another type of food or area you would be interested in? Sentence2: Thanks, will you please book a table for 7 people on thursday at 13:00? Sentence3: I'm looking for a restaurant in the east. Sentence4: How about British food? Sentence5: There are nine restaurants in the east. Do you have a price range in mind? Sentence6: You are welcome. Enjoy your dinner! Sentence7: Booking was unsuccessful. can we book another day or time slot? Sentence8: Nope, that should be everything. Thank you so much for all of your help. Sentence9: Booking was successful for Thursday at 1200hrs , table for 7 at Grafton Hotel restaurant. Your Reference number is KQKTCX5Y . Is there anything else I can help you with? Sentence10: I would recommend you try Grafton Hotel Restaurant. As requested it is in the east and serves British food. Sentence11: I don't have a price range but I am looking for asian oriental cuisine. Is that possible? Sentence12: please try booking at 1200hrs and get me the reference number Question: Who has spoken the sentence 11? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: There is a moderate priced Indian Restaurant located on the east side, would you like that address? Sentence2: That's it, thanks. Good bye. Sentence3: Thank you for calling. Goodbye. Sentence4: Yes please, could I have the address, phone number, and postcode of the venue? Sentence5: located in the east side Sentence6: Hi, I want a moderately priced restaurant. Sentence7: curry prince's address is 451 Newmarket Road Fen Ditton, their postcode is C.B 5, 8 J.J. Their phone number is 01223 566388 Sentence8: There are several restaurants in the moderate price range. Do you have a preference for the type of food or part of town? Sentence9: Thank you. Sentence10: You're welcome. Anything else I can help you find? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: address, phone number, and postcode, please Sentence2: Then could you recommend a Chinese restaurant? Sentence3: I need an east restaurant. I want to try some Canapes food. Sentence4: enjoy your meal. Sentence5: Yu Garden is a Chinese restaurant in the east part of town. Sentence6: I'm sorry, but there are no restaurants serving canapes food in the east part of town. Sentence7: No, thank you, goodbye. Sentence8: Yu Garden is located at 529 Newmarket Road Fen Ditton and their number is 01223 248882. Also, their postcode is C.B 5, 8 P.A. Is there anything else I can help you with? Sentence9: Goodbye. Sentence10: Thank you. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output:
Answer: (B) System