You will be given a definition of a task first, then some input of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: The phone number is 01954714600 and the address is back lane cambourne. Sentence2: In the west there are no parks. But there are colleges, museums, and an entertainment place called Whale of a Time if you are interested. Sentence3: Perfect, that is all I need to today! Thank you. Sentence4: Can you help me find an attraction in the west part of town? Sentence5: What type of attraction are you looking for? Sentence6: The post code for Whale of a Time is cb238el. The Cambridge Belfry fits your needs perfectly. Would you like me to make a reservation? Sentence7: Yes, the Cambridge Belfy is a 4 star hotel in the west area. Sentence8: Thank you. Goodbye Sentence9: please get me the postcode. I am also looking for a place to stay. The hotel should be in the cheap price range and should include free parking. Sentence10: Is that a four star hotel? Sentence11: What is their address and phone number? Sentence12: a park for kids or a mini mall ? Question: Who has spoken the sentence 11? (A) User (B) System
Output:
Answer: (B) System