You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Do you have a preference for which area of town? Sentence2: That sounds interesting! What is the post code? Sentence3: That'll be all. Thank you! Sentence4: The postcode for Broughton House Gallery is cb11ln. Is there anything else you need? Sentence5: I am looking for a museum to visit! Sentence6: Have a great trip! Sentence7: I don't care which part of town it's in. I don't mind doing some walking. Sentence8: How about Broughton House Gallery? It's located in the centre, at 98 King Street. Question: Who has spoken the sentence 3? (A) User (B) System
A:
Answer: (B) System