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

Sentence1: How about a restaurant that serves British food? Sentence2: No, I just need an address with postcode and phone number. Sentence3: I am looking for a Spanish restaurant in the west side of town Sentence4: The address is 21-24 Northampton Street, postcode: cb30ad and the phone number is 01223353110. Is there anything else I can do for you? Sentence5: No, you have been a great help. Thank you. Sentence6: Thank you, goodbye Sentence7: A moderate price range, please. Sentence8: I found saint johns chop house. Would you like me to book a table for you? Sentence9: We have three excellent options here. Do you prefer a moderate pricerange or expensive? Sentence10: I'm sorry, but there are no restaurants matching your request. Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System