Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: No, that's all I needed. Have a nice day. Sentence2: I have 5 hotels that meet that criteria. What area of the city would you like to stay in? Sentence3: I'm afraid not. Perhaps a different star rating? Sentence4: OK, can you book me for 1 person for 5 nights starting on sunday? Sentence5: Do you care whether it is in the same area or not? Sentence6: I'm sorry there are no hotel that are moderate in the Centre of the city. Would you like a different part of town? Sentence7: No. Are there any guest houses in that range? Sentence8: Please book a different hotel in the same price range. Sentence9: I'm looking for a 3 star lodging with free parking. Sentence10: I'm sorry. Could you just find me one with free parking, a 3 star, moderate. I don't care where it is located. Sentence11: I think I would like it near the centre. Does it have free parking? I would like the price range to be cheap but at least a 3 star hotel. Sentence12: Enjoy your stay at the hamilton lodge. Have a great day. Sentence13: I have you booked at Hamilton Lodge. The reference number is TGSVA9OC . Is there anything else I can help you with? Sentence14: No, the area is not important. Just the same price range, if you can find anything. Sentence15: There are 3 including bridge guest house. Sentence16: What hotels are available in the moderate price range? Sentence17: I have a listing for gonville hotel but it is expensive, I have looked in other areas and the cheapest are moderate. Sentence18: Booking was unsuccessful. Want to find another hotel? Question: Who has spoken the sentence 17? (A) User (B) System
A:
Answer: (B) System