Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I need to leave after 11:30 on tuesday. I'm traveling to cambridge. Sentence2: That is all thank you goodbye Sentence3: I need to book a train leaving from London Kings cross. Sentence4: The only Italian place in the east is Pizza Hut Fen Ditton. Would you like more information? Sentence5: Your reservation is all set! Your reference number is EV3K4Q4D . Is there anything else I can help you with? Sentence6: i want to book a table for 4 people at 21:00 on the same day as the train. Sentence7: Can you find me a restaurant that serves afghan food and is located in the east? Sentence8: Yes, it's 23.60 pounds per ticket. Sentence9: How about Italian food? Sentence10: I'm sorry we don't have any Afghan restaurants in the east area. Would you like to try a different type of food or a different area? Sentence11: I have 6 entires. TR3456 leaves at 13:17. Does that work for you? Sentence12: Yes can I get the price on that? Sentence13: What day were you wanting to travel on? Sentence14: Okay great. I'm glad I could be of help. Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User