You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: I'm sorry, but they have no openings at that time. Care to try a different day or perhaps a different time? Sentence2: I would like Mexican, I would need a table for 6 at 16:00 on Monday Sentence3: What type of cuisine options do I have? Sentence4: You're welcome. Have a nice day. Sentence5: Yes, I've successfully booked your reservation for 15:00. Anything else? Sentence6: Yes I am looking to find a restaurant that is expensive in the south of town. Sentence7: Yes. The reference number is SEI1ME8K . The Chiquito Restaurant Bar will reserve your table for 15 mins starting at 15:00. Can I help you with anything else? Sentence8: There are 5 options. What food type would you like? Sentence9: How about 15:00 for 6 people on Monday? Sentence10: Thanks! That will be all for today. Sentence11: Could I get that reference number? Sentence12: You can choose between Mexican, Italian, Indian, and Chinese. Question: Who has spoken the sentence 6? (A) User (B) System
A:
Answer: (A) User