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

Sentence1: Thank you and please check with us for future reservations. Sentence2: I have 6 different Indian food restaurants available. Might I suggest Curry Queen. It is the most highly rated in the area. Sentence3: I need the town centre. Sentence4: I'm looking for an expensive Indian restaurant. Can you help me with that? Sentence5: Sure, I can help you with that. There are 14 choices. Did you have a certain area in mind? Sentence6: The Curry Queen is located at 5 Jordans Yard Bridge Street City Centre, and the postcode is cb21ug, would you like me to book this restaurant? Sentence7: Certainly, sounds good. Could you just get me the address and postcode? Sentence8: No thank you, that is all I needed! Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System