Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I have the varsity and the bloomsbury restaurants when would you like to book Sentence2: How about one that serves international food? Sentence3: Nothing else for today. Thank you. Sentence4: No problem! I have a table booked for you. Your reference number is KFUNWVWH . What else can I do for you? Sentence5: Train ID please and thank you Sentence6: I would like to book at Varsity for 5 people around 20:45 on the same day I arrive. Sentence7: I need to arrive in Cambridge by 17:15 please. Sentence8: I need to catch a train in Broxbourne on Wednesday. Sentence9: What time would you like to leave Broxbourne? Sentence10: Thank you I also would like a place to eat in the centre that serves afternoon tea food. Sentence11: There is a train arriving in Cambridge by 7:32. Sentence12: No record match your search, can I try anything else? Sentence13: Have a good day! Sentence14: I'd suggest TR5972, it departs at 15:32 arrives by 16:32. It costs 17.90 pounds per ticket. Question: Who has spoken the sentence 3? (A) User (B) System
Output:
Answer: (B) System