You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: How about Graffiti, they serve British food and are in the expensive price range, their phone number is 01223 352500. Sentence2: I'm sorry, there is not restaurants matching your request. Would you like to try something else? Sentence3: Yes, I would like an expensive restaurant that serves british food. Can I have the phone number please? Sentence4: Hello, I am looking for an expensive restaurant that serves Irish food. Sentence5: You're welcome. Good bye. Sentence6: Perfect! Thanks, good-bye! Question: Who has spoken the sentence 1? (A) User (B) System
A:
Answer: (B) System