Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Thanks for the info. Can you also tell me if there are any trains on Saturday that leave after 11:15? Sentence2: Certainly, there are 134, do you have an arrival time in mind? Sentence3: I am going to stansted airport and need to leave on Saturday. Sentence4: To help narrow it down, what is your destination and what day will you be leaving? Sentence5: Thanks, Are there trains that depart from Cambridge? Sentence6: Can you tell me what the entrance fee is for Ballare? I also need the address. Sentence7: Thank you! That's all I need today. I appreciate your help! Sentence8: I am looking for a nightclub in the town centre. Sentence9: TR3373 meets your criteria and arrives by 12:08. Would you like to book it? Sentence10: Great the reference number is 7LIC35YA . Sentence11: You are quite welcome! Have a safe flight! Sentence12: Yes I need to book for 8 people and get the reference number please. Sentence13: There are five nightclubs I can show you. How about the Ballare at lion yard? Sentence14: Yes, there are trains that leave after 11:15. Sentence15: address is heidelberg gardens, lion yard. entrance fee is 5 pounds Sentence16: No, but I need to leave after 11:15. Question: Who has spoken the sentence 8? (A) User (B) System
Output:
Answer: (A) User