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 would also like a train that depart from ely and arrive by 13:00. Sentence2: On what day will you be traveling? Sentence3: no thanks. I just need the train ID, travel, and departure time Sentence4: Have a nice day! Sentence5: There are several museums, is there a particular area you were interested in? Sentence6: the latest train would arrive at 11:52. would you like me to book you a reservation? Sentence7: The train ID is TR0813. The departure time is 11:35 and the total trip time is 17 minutes. Can I help you with anything else? Sentence8: I would be leaving Thursday and going into Cambridge. Sentence9: No not really. I just need to get a phone number, postcode, and address for the one we'll be attending. Do you recommend one for me? Sentence10: No thank you that will be all Sentence11: I am interested in museums, which ones are in operation in cambridge? Sentence12: I think you will enjoy the byard art museum. It is located at 14 king's parade. The postal code is cb21sj and the phone number is 01223464646. Question: Who has spoken the sentence 1? (A) User (B) System
Output:
Answer: (B) System