Given the task definition and input, reply with output. You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: Sounds great,and I will take it! Sentence2: On second thought, I'm actually looking for a hotel. Same criteria, but it needs to be in the moderate price range. Sentence3: Hello, I'm trying to find info about a particular attraction in town called adc theatre. Can you help me? Sentence4: Do you know the area the hotel is located in? Sentence5: Their contact number is 01223300085. It does not look like there is an entrance fee but I would call just to be sure. Sentence6: Yes please, including the postcode. Is there an entrance fee? Sentence7: Thanks! I also need a 4-star place to stay that has free parking. Sentence8: I have found 5 matches that meet your criteria. How about the acorn guest house? Sentence9: What area is it in? Sentence10: acorn guest house is in the North of town. Is there anything else? Sentence11: Would you like for me to try and make a reservation? Sentence12: Yes I can help you,I have locate adc theatre do you want the address? Sentence13: Acorn Guest House is at 154 Chesterton Road. Would you like more info, or would you like to go ahead and book it? Sentence14: Acorn guest house is a great fit! Want more info? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User