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 am leaving on Monday from birmingham new stree Sentence2: The earliest train to leave after 21:00 is TR8406 at 21:40. Would you like to book this train? Sentence3: From where are you leaving and on which day? Sentence4: Can you tell me the arrival time for that train and the total travel time? Sentence5: Thanks! Have a great day! Sentence6: Is that the earliest train you have after 21:00? Sentence7: There is a train that leaves 12:40. Sentence8: Hi, could you help me find a museum to visit? Any recommendation would be great. Sentence9: It arrives at 24:23 after a total travel time of 163 minutes. Sentence10: Sure! Their address is 13 Magdalene Street. Their postcode is cb30af. Is there anything else I can help you with today? Sentence11: Thanks so much! Oh, wow it's late. I need to run. Thanks. Bye! Sentence12: can have the postcode and address please? Sentence13: I'd like to leave birmingham new street after 21:00 on Monday, and go to cambridge. Sentence14: May I recommend Cafe Jello Gallery on the West Side. Sentence15: I'm also looking for information on trains that leave after 21:00 and go to cambridge. Sentence16: There are 21 trains available. Did you have an arrival or departure date/time in mind? Question: Who has spoken the sentence 13? (A) User (B) System
Output:
Answer: (B) System