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: Please help me, I've just been robbed and I need to report this to the police. Sentence2: Yes, it is Parkside, Cambridge. Sentence3: The local police station's number is 01223358966. Sentence4: That's all I need, thanks. Sentence5: Okay, please let me know if I can be of further assistance. Sentence6: And the address for the police station please? Question: Who has spoken the sentence 4? (A) User (B) System
A:
Answer: (A) User