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

Sentence1: That is free to enter. Sentence2: I think so. Can you give me the travel time and price for TR5266? Sentence3: Yes, I'm looking for a museum in the center of town. Sentence4: I was wondering if there is a French restaurant here in Cambridge? Sentence5: Alright then. Have a wonderful day. Sentence6: The train departs at 15:00 and the price is 23.60 pounds. Sentence7: Great, thank you, I think that's all I need. Sentence8: That sounds interesting. What is the entrance fee for the museum? Sentence9: I see. TR5266 arrives by 15:51. Will that be sufficient? Sentence10: I'm also looking for a train to London Kings Cross. Sentence11: There are plenty of trains that will take you to London Kings Cross. May I ask what day and time you would like to take this train? Sentence12: There are 11 museums in the centre area. There is Cambridge Contemporary Art. Is that acceptable, or do you have other criteria? Sentence13: I'm sorry, but there seems to be an error. Can you please restate your request? Sentence14: I want to leave Thursday and arrive by 16:00 Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System