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: Yes, if I can get into a hotel in the north that would be best. Sentence2: Can you find a guesthouse for me? Sentence3: I have the Alpha-Milton guest house in the north that does not include free wifi. Would you like for me to book a reservation for you? Sentence4: Okay well enjoy your stay in Cambridge. Sentence5: I have no hotels in the north that don't include Wifi but I have found 2 that do. Sentence6: I want to find a place to stay in the north that doesn't need to have free internet. Sentence7: I am a bit confused. Did you want a guesthouse or a hotel? If you want a hotel, I can book the Ashley hotel for you. Sentence8: Book for 3 nights for 3 people starting sunday please. Sentence9: Okay I've booked you into the Ashley and your reference number is 420X4N75 . Sentence10: Yes there are many. When should I book it for and how many? Sentence11: I should have told you I am specifically looking for a hotel and not a guest house. Sentence12: Thanks, that's all I need. Have a nice day. Question: Who has spoken the sentence 10? (A) User (B) System
A:
Answer: (A) User