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

Sentence1: You're welcome. Have a great night. Sentence2: You too. Goodbye. Sentence3: thank you, have a nice day. Sentence4: Yes, they are located at parkside, postcode CB11JG. Their telephone number is 01223358966. Sentence5: can i find the parkside police station Sentence6: Thanks, that is all I needed. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System