You will be given a definition of a task first, then some input of the task.
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! You have a great day. Sentence2: Please book the restaurant as requested. I would also like the reference number. Sentence3: Reference number is : JCH9E5BI . do you need anything else? Sentence4: We have 33 expensive restaurants in the centre, do you have a specific cuisine in mind? Sentence5: Okay I found you a Chinese restaurant and wish to make you a booking. Sentence6: Yes, I would prefer chinese please. Sentence7: I have the tang chinese restaurant located at napier street city centre. Would you like to make reservations? Sentence8: Can you tell me about any expensive restaurants in the Centre? Sentence9: No, that's it. Thanks so much. Sentence10: Yes. Make a reservation for 8 people on Monday at 11:30. Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User