You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Sentence1: That will work. Can I get the price and the travel time please? Sentence2: Thank you for the information! I don't need anything else. Sentence3: I have results for 17 chinese restaurants, what area are you looking to dine in? Sentence4: Excellent. Do you want the reference number? Sentence5: Yes you can you book it for 6 people at 12:45 on Friday? Sentence6: Great. enjoy your journey. Sentence7: I would like it be located in the Centre area. I like expensive chinese food. Sentence8: Yes, please. I am also looking for a train. Sentence9: I am going to broxbourne and need to leave cambridge so I arrive by 15:00. Sentence10: I have train TR4334 that departs at 13:01 and arrives by 14:01. Do you think that would work for you? Sentence11: Where will you be going to and from? Sentence12: The travel time will be 60 minutes and the price will be 14.32 pounds. Sentence13: I have 4 different restaurants. If you would like a recommendation, The Ugly Duckling is often known as the best in town. Sentence14: Okay. Can you also tell me what day you want to travel? Sentence15: Yes, I would like to travel on Saturday. Sentence16: I would like to book a meal at a chinese restaurant. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User