Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: there are many. what is your price range? Sentence2: no, that is all. goodbye. Sentence3: Do any of them offer free parking and wifi? Sentence4: Okay, I went ahead and booked you the warkworth house. Your reference number is 9HN7CVKZ . Can I help you wtih anything else? Sentence5: That sounds perfect, yes please. Sentence6: It is at Finders Corner Newmarket Road. Sentence7: I have 6 four star guesthouses in the east. Would you like to book one today? Sentence8: A table for 6 at 13:15 on Wednesday would work. I'll need a reference number. Sentence9: Thank you for using our services. Goodbye. Sentence10: the missing sock is a cheap restaurant in the east that serves international food. can i give you the address? Sentence11: Booking was successful. The table will be reserved for 15 minutes. Reference number is : VE35KBVE . Anything else I can help with? Sentence12: I would also like a cheap place to eat in the same area. Sentence13: yes 5 of them. what is your price range? Sentence14: I need some help finding a place to stay in the east please. Sentence15: Price isn't really a factor, but I would like 4 star Sentence16: Price doesn't matter. Any of the five will be fine. I'll need it booked for Wednesday. It will be 3 nights and for 6 people. Question: Who has spoken the sentence 9? (A) User (B) System
Output:
Answer: (B) System