You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: There are several choices. The ride is about 79 minutes long. Can I make a reservation for you? Sentence2: I have you booked and your confirmation number is PUQ990A7 . Can I help you further? Sentence3: stazione restaurant and coffee bar italian is in centre area. it is expensive. their telephone number is 01223352607, code cb23njand is located inMarket Hill City Centre. Sentence4: Okay. That sounds good. Can you tell me more about a restaurant called stazione restaurant and coffee bar. Sentence5: No, I do not have a specific arrival time. Sentence6: I have several, is there an arrival time you prefer? Sentence7: Sure. Can you confirm the day you would like the booking? Sentence8: I'm looking for a train from norwich to cambridge. Sentence9: Can you book a table for 5 people at 17:45 for Stazione, please? Sentence10: Yes. I need that booking for Sunday. Sentence11: I am not sure. Do you have one leaving after 9:15 on sunday? Sentence12: Have a great day! Sentence13: Okay, how about TR0996, leaving at 09:16 and arriving by 10:35? Sentence14: I think that is all I needed today. Thank you! Question: Who has spoken the sentence 12? (A) User (B) System
A:
Answer: (A) User