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: I have your made your reservation. Ref# is E7VPA79P . They will hold the table for you for 15 minutes. Is there anything else that I can be of assistance? Sentence2: That is everything, thank you so much for your assistance. Sentence3: Book for 8 people on Friday at 17:15. Sentence4: Yes, I'd also like to check out a cool place in the centre area. Sentence5: I want Turkish at a moderate price. Sentence6: That sounds great. Can you tell me a phone number I can reach them at, and also the entrance fee? Sentence7: The Broughton House Gallery meets your criteria, would that work? Sentence8: I am getting the booking started for you now, can you give me the day and number of people please? Sentence9: We have a lot of great restaurants! What kind of food do you prefer, and what price range would you like for me to check? Sentence10: The Efes is fine. I need a table for at 17:15. I will also need the reference number. Sentence11: You're welcome and enjoy your stay. Sentence12: How about multiple sports? Sentence13: The phone number is 01223314960 and the entrance fee is free. Sentence14: I have found 2. The anatolia or efes restaurant. Would you like a booking made today? Sentence15: There is a lot to do in the centre. Are you looking for a particular type of attraction? Sentence16: There is nothing in the centre of town for sports. Would you like to try something else? Sentence17: I am coming to Cambridge and am so excited to see some local tourist attractions. I just need help finding a restaurant to eat at while there. Sentence18: What about a museum? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User