Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Help, I need to find the nearest police station. Sentence2: You're welcome. Please contact us again if you need any additional help. Sentence3: No, that will be all, thank you. Sentence4: The nearest police station: Parkside Police Station, telephone is 01223358966, address is Parkside, Cambridge, and postcode is CB11JG. Is there anything else I can help with? Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System