You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I'm looking for a sports facility in the town centre. Sentence2: How about a museum instead? Sentence3: Unfortunately, I do not have any sports attractions in the centre of town. Can I look in another area or for a different type of attraction? Sentence4: Excellent. Take care! Sentence5: What's their postcode, and how much is it to get in? Sentence6: How about, the Cambridge Contemporary Art Museum located at 6 trinity street? Sentence7: The number there is 01223324222. Anything else? Sentence8: That sounds good. What is their phone number? Sentence9: There is no entrance fee; it is free. The postcode is cb21su. May I help you with anything else? Sentence10: That's all, thank you. Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System