Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Ok, let us know if you need anything else, thank you for using our service. Sentence2: Parkside Police Station in Parkside, Cambridge, postcode: CB11JG, telephone number 01223358966. Can I help you with anything else? Sentence3: I need to find the nearest police station. Sentence4: That's all I needed. Thank you! Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System