You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: No, that is all I need. Thank you. Sentence2: The police station is at Parkside, Cambridge. Sentence3: Can I get the postcode? Sentence4: The postcode is CB11JG Sentence5: I need to find the police station closest to me please. Sentence6: Do you need any further assistance? Sentence7: Thank you very much for your help Sentence8: What is the address and phone number for that station? Sentence9: You are welcome, have a good day. Sentence10: The number is: 01223358966. The address is: Parkside, Cambridge. Can I help with anything else? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System