Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Problem:Sentence1: TR4689 is your best bet. It will arrive at 8:58. Would you like me to book some tickets for you? Sentence2: i Am looking for a train. The train should leave on Saturday and should depart from Cambridge. Sentence3: It departs at 8:11. Sentence4: it should arrive by 09:45. Sentence5: I am going to kings lynn Sentence6: Where are you traveling to? Sentence7: Do you need to arrive or depart by a specific time? Sentence8: You're very welcome. Have a great day. Sentence9: Thanks, that's all I needed today. Goodbye! Sentence10: What time does it depart? Question: Who has spoken the sentence 4? (A) User (B) System
Solution:
Answer: (A) User