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 have one train departing at 19:54, one at 21:54, and the last one at 23:54. Will any of those work? Sentence2: I have 202 trains travelling to Cambridge on Monday, could you be more specific on when you'd like to depart and from where? Sentence3: Congratulations! Your booking was successful with a reference number of DMEL46A6 and a fee of 64 GBP. Can I help you with anything else? Sentence4: Yes, 19:54 will be fine. I'd like tickets for 5 people. Sentence5: I'd like to depart from Stevenage after 19:45. Sentence6: I am looking to find a train. It needs to go to Cambridge and it has to leave on Monday. Sentence7: You're welcome. Enjoy your day. Sentence8: That is all. Thank you. Question: Who has spoken the sentence 5? (A) User (B) System
Student:
Answer: (B) System