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: Yes I need the reference number for the booking please. Sentence2: I can get you a train arriving at Cambridge at 12:07, how many tickets will you be needing? Sentence3: Just one, please. Sentence4: Yes that is MKL2A4KD . Is there anything else I can help you with today? Sentence5: I need a train to Cambridge. Sentence6: I'll be leaving from bishops stortford on saturday, and I need to get to cambridge at or a little before 14:00. Sentence7: No, that's all. Thank you very much for your help. Sentence8: I booked Train ID TR4594. Your price is 8.08 pounds. Is there anything else I can do for you? Sentence9: You are welcome. Have a nice day. Sentence10: Ok, when and where are you leaving from? Question: Who has spoken the sentence 9? (A) User (B) System
Student:
Answer: (B) System