Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: You're quite welcome! Thanks for contacting the Cambridge TownInfo Centre and have a great day! Sentence2: No, thanks. I think that will take care of it. Have a good night! Sentence3: Yes, abbey pool and astroturf pitch is a swimming pool on the east side of town. What other information would you like? Sentence4: My brother told me about this attraction place called Abbey Pool and Astroturf Pitch. Would you be able to tell me where it is? Sentence5: I'm sorry, I don't have that information. You could call them at 01223902088 and ask though. Can I help you with anything else? Sentence6: Could you tell me the entrance fee for that? Question: Who has spoken the sentence 5? (A) User (B) System
A:
Answer: (B) System