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: It has a four star rating. What else can I do for you? Sentence2: I have booked for you train TR4202. he total fee is 14.08 GBP payable at the station . Reference number is : PI9JS0X7 . Sentence3: Cityroomz is 0 stars and moderately priced. Do you need assistance booking a room today? Sentence4: Hello, I need a hotel that's moderately priced, please. Sentence5: Could you please book for 1 person for 4 nights starting from Saturday. If 4 nights is not available, how about 2 nights. I also need the reference number. Sentence6: We couldn't do 4 nights, but I do have you booked for two. Your reference number is L4N1ZRYO . Anything else I can do for you today? Sentence7: What is the star rating of the arbury lodge? Sentence8: Would you like me to book arbury lodge guesthouse Sentence9: I need a train on Sunday to Cambridge, please. Sentence10: There are 202 trains, do you have a specific day time or departure in mind? Sentence11: Yes. I need the train on Saturday also. It should leave Norwich and arrive by 8:45. Sentence12: I am really looking for one with a zero star rating. What do you have available. Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User