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: Sure, try 17:30. Sentence2: No that will be all. Sentence3: We have four cheap Chinese restaurants. Are you interested in the south or centre area? Sentence4: The golden house is a cheap chinese restaurant in the center area. Would you like me to reserve a table for you? Sentence5: I'm so sorry but there doesn't seem to be any restaurants in the city that offer austrian food. Can I look for another cuisine style for you? Sentence6: Ok, how about a cheap Chinese restaurant? Sentence7: I am interested in the centre area. Sentence8: Darn, I was really hoping to find a cheap Austrian restaurant. Would you mind checking one more time? Sentence9: Could you help me find an Austrian restaurant please? Sentence10: I'm sorry but there are no Austrian restaurants. Is there another type that might interest you? Sentence11: Yes, that would be great. I'd like a table for 3 on Saturday at 18:30. Sentence12: I was able to make your reservation for 17:30. Your reference number is VGGQ2AP9 . Is there anything else I can help you with? Sentence13: There doesn't seem to be any availability for Saturday at 18:30. Does another time or day work for you? Sentence14: Excellent. Have a good rest of your day. Question: Who has spoken the sentence 9? (A) User (B) System
Output:
Answer: (B) System