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: Done! Your table will be reserved for 15 minutes. The reference number is 1T0DI06Z . Can I help you with anything else? Sentence2: Hmm, I really want to stay near the hotel. Do you have anything in the south instead? Sentence3: I would prefer to stay in the South please. Sentence4: I want to eat at 16:15. Sentence5: It will be a black Honda. Is there anything else I can help you with today? Sentence6: No. That is all I need for today. Sentence7: There's one guesthouse, el shaddai, that fits your criteria. Do you need more information? Sentence8: No, but I do need a reservation for Wednesday, 2 nights, for 3 people. Sentence9: Oh yeah, I'm going to need a ride to get around. Sentence10: Thank you, what kind of car will be picking me up? Sentence11: Booking was successful. Reference number is : LG6AFLVA . Sentence12: Yes I can. What time would you like to eat? Sentence13: In the south we do not have any expensive british restaurants. We do have chinese, indian, italian or mexican. Sentence14: That sounds wonderful! Is it in the same area as the hotel? Sentence15: I've changed my mind and would prefer to stay in the center of town. I need parking, wifi, and it should have a 0 star rating. Sentence16: Yes! What part of town would you like to stay in? Sentence17: Thanks. Could you also help me locate an expensive british restaurant? Sentence18: There are 4 nice places to stay in that area, is there a price range you prefer? Sentence19: I have booked you a taxi to take from your hotel to The Cambridge Chop House. Contact number : 07124495603 Sentence20: The Cambridge Chop House sounds like it might be what you are looking for. Sentence21: My hotel is in the centre, so the Cambridge Chop House will actually work. Can you make me a booking for 3 people on Wednesday? Sentence22: Thank you for calling. I hope you enjoy your trip. Goodbye! Sentence23: Your hotel is in the south and the cambridge chop house is in the centre, is that okay? Sentence24: Can you help me find a place to stay? Question: Who has spoken the sentence 17? (A) User (B) System
Output:
Answer: (B) System