Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Yes please make that reservation for me Sentence2: I need it for 8 people at 10:30 on saturday Sentence3: I was unable to find any moderately priced Polynesian restaurants. Sentence4: Booking was successful for a table at la tasca. The table will be reserved for 15 minutes, reference number is : 3TR0F2B1 . Can I help with anything else? Sentence5: I have several trains that will suit you. What is your destination and what time could you like to leave? Sentence6: TR8933 will be departing cambridge at 13:36 and arriving in norwich at 14:55. Would you like to book this? Sentence7: I will need some more information before making a reservation. What day would you like it on and for how many people? Sentence8: La Tasca is a centrally located, moderately priced, Spanish restaurant. Would you like to make a reservation? Sentence9: I am looking for a Saturday train departing from Cambridge. Sentence10: Please book for 8 people. Sentence11: How then about Spanish or a pub that serves tapas? Sentence12: Norwich is my destination and I want to leave after 13:00. Sentence13: No, I don't need anything else Sentence14: Alright the book was successful, the total fee is going to be 112.64 GBP payable at the station and the reference number is 28O28GIJ . Sentence15: Thanks! I'm also wondering if there are any moderately priced polynesian restaurants around. Sentence16: Have a great day! Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System