Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Okay thank you! No that will be everything. Sentence2: The earliest arrival prior to that time is the TR9900 which leaves Norwich at 05:16 and arrives in Cambridge at 06:35. Would you like me to book you a seat? Sentence3: I suggest broughton house gallery located at 98 king street. Sentence4: Booking was successful, the total fee is 52.8 GBP payable at the station . Reference number is : 50KBIWYY . Is there anything else I can help you with? Sentence5: The postcode for the Broughton House Gallery is cb11ln. Is there anything else I can help you with? Sentence6: Certainly. Cambridge has many museum offerings. What area are you thinking of visiting? Sentence7: Yes, 3 seats in fact. Sentence8: Yes I need to find a train on Friday going to Cambridge from Norwich and arriving by 12:45. Sentence9: I'm looking for some museums, could you help me find more information on them? Sentence10: I'm open to visiting any area in Cambridge. Could you suggest a museum please? Sentence11: Thank you for calling today. Sentence12: What's the postcode for that? Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User