Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: I don't care about the price range. Can you just pick a good one for me? Sentence2: Sadly there are no restaurants anywhere in Cambridge that describe their food as "creative." We do have many restaurants in town, though, so I'd be happy to look for something else. Sentence3: That booking was successful. A reservation was made for 6 people at HK Fusion on Saturday at 11:15. Reference is ARWFXLDL . Can I help with anything else? Sentence4: Yes, sounds good. Please reserve a table for six at 12:15 on Saturday. Sentence5: You're very welcome. Thanks for using our service. Sentence6: Hi, I would like a restaurant inthe centre of town which serves creative food please. Sentence7: Nothing else. I look forward to the meal. Thank you for all your help. Sentence8: There are 10 Chinese restaurants in the centre of town. Is there a specific price range you would like? Sentence9: Is 11:15 on Saturday available? Sentence10: How about a restaurant that services Chinese food? Sentence11: That was unsuccessful. Would you like another day or time slot? Sentence12: If money is no concern, I would definitely recommend HK Fusion. It's in the centre of town and expensive. It's located at 21 Burleigh Street, City Centre. How does that sound? Question: Who has spoken the sentence 11? (A) User (B) System
A:
Answer: (B) System