Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Great! Please make a booking for 3 people. Sentence2: I have a train leaving Cabridge for Peterborough Thursday at 05:06. Sentence3: I've booked 3 tickets for you, and the fee is 49.5 gbp and your reference number is 17OSNISB . Sentence4: Great! Have a nice day! Sentence5: Thanks very much for your help. Sentence6: I would like to book a train. I need to go to peterborough on thursday. Sentence7: I'll be leaving from Cambridge, thanks. Sentence8: What station will you be departing from? Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System