Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: im glad i was of some help Sentence2: Can you help me find a train arriving at 18:15 going to cambridge? Sentence3: I'll need passage for five, but I also need to know what time the last train gets there before 18:15. Sentence4: Sure thing, would you like me to book this for you? Sentence5: Thanks again, thats all for now. Sentence6: Is there anything else I can do for you? Sentence7: That'll do. I'll need 5 tickets. Sentence8: It is at colville road, cherry hinton, postcode cb19ej, phone 01223576412. Sentence9: Okay, thank you. Sentence10: I am leaving Peterborough going to Cambridge on Monday and I need to get there by 18:15, can you help me with that? Sentence11: no thats all for today Sentence12: Monday would be best please. Sentence13: I need to find some place in the east for multiple sports. I'd like to get the address, phone number, and postcode please. Sentence14: which day do you want to travel to narrow down my options Sentence15: Sure! Where are you heading in from? And what day? Sentence16: Okay. Enjoy your visit to cambridge! It's a wonderful place. Sentence17: Booking was successful, the total fee is 82.5 GBP payable at the station . Reference number is : CWLKMZER . What else can I do for you today? Sentence18: how about TR3021? it leaves at 05:19 Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System