Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: No I just need to make sure I get there by 15:00. I will need the train ID and departure time please. Sentence2: Yes it's an Indian restaurant in the east at the moderate price range. Would you like the address and phone number? Sentence3: Hi, I'm going to be visiting soon, and I am interested in trying a restaruant called Curry Prince. Could you give me more information about it? Sentence4: I have several trains available. What is your destination and preferred time of departure and arrival? Sentence5: There is a train leaving at 13:17. Would you like me to book the train for you? Sentence6: The train should go to cambridge and should arrive by 15:00,can you book it for me ? Sentence7: Is there a time you would like to leave by? Sentence8: No problem! I got that booked for your party of five. The reference number is JVGYC33Y . Do you need anything else? Sentence9: I am also looking for a train. It should should depart from London Kings Cross and should be on the same day. Sentence10: I just need the train's departure time and ID. Sentence11: Ok I will book it for you Sentence12: No but I would like to make a booking for 5 people at 18:30 on sunday. Sentence13: OKay perfect do you think you could book that for me please? Sentence14: Okay, the TR1688 leaves at 13:17. Question: Who has spoken the sentence 12? (A) User (B) System
Output:
Answer: (A) User