Teacher:You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? Solve this instance: Sentence1: I need a train to leave from London's Cross. Sentence2: I'd like it to be for Saturday. Sentence3: Glad to help. Have a nice day. Good bye. Sentence4: I have a train that leaves London Kings Cross at 05:00 and arrives by 05:51 at a price of 18.88 pounds. Is that OK? Sentence5: Yes I was able to book that and your reference number is XYVAABBJ . Cost of the ticket will be 18.88 pounds. Is there anything else? Sentence6: I'm sorry I had that completely mixed up. There is a train leaving London Kings Cross at 5:17 and arriving in Cambridge at 6:08. Does that work? Sentence7: Yes, it is perfect. Thank you Sentence8: Yes please book that and give me the reference number of the booking. Sentence9: No that will be all thank you. Sentence10: What day would you like the train for? Question: Who has spoken the sentence 6? (A) User (B) System
Student:
Answer: (A) User