Q: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Sentence1: The first train available leaves at 09:54 and arrives at 10:43. Will that work? Sentence2: The price is 12.80 pounds. Sentence3: I am looking for a place to stay that has free wifi and is in the expensive price range. Sentence4: I think so, but can you confirm the price first? Thank you. Sentence5: I have five hotels that all fit that criteria. Anything else you're looking for in a hotel or should I just book one of those for you? Sentence6: I also need a train departing from Stevenage leaving after 08:45 Sentence7: There is also a train that leaves at 07:54, would you like that one? Sentence8: What is your destination? Sentence9: Thank you for using our system today! Sentence10: I just need to have free parking. Sentence11: OK, thank you. That is everything that I need. Sentence12: Yes, the price is still 12.80. It arrives at 8:43. Sentence13: There are 5 hotels that meet your criteria. Do you have a preference on what area of the city you'd like to stay in? Sentence14: I don't need it booked. Can I get the phone number and address of an expensive hotel with free wifi and parking? You choose. Sentence15: The phone number for Gonville is 01223366611, and the address is gonville place Sentence16: Cambridge on Friday. Sentence17: Is there any earlier arrival times? Sentence18: Could you please give me the arrival time and confirm that the price is still 12.80 Question: Who has spoken the sentence 10? (A) User (B) System
A:
Answer: (A) User