Detailed Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Problem:Sentence1: TR7024 is the first train after 10:30 it leaves after 11:21, would you like me to book you? Sentence2: I will be leaving from Cambridge. Sentence3: That's fine I need 4 tix and the ref # Sentence4: Where will you be leaving from? Sentence5: That sounds great! Can I get the postcode? And then I need to find a train. Sentence6: The postcode is cb58as. What day and time will you be travelling on? Sentence7: I will get that for you Sentence8: The adc theatre is very good would you like that one? Sentence9: Nope, choose the one you think is best and let me know the postcode please. Sentence10: That sounds like fun. I've found five theaters in town. Four of them in the center of town, one to the south. Do you have any other criteria? Sentence11: We would like to attend an event at the theatre while we are in town. Sentence12: What time would you like to arrive by? Sentence13: I am going to stevenage on thursday. Sentence14: I would like to leave after 10:30. Question: Who has spoken the sentence 9? (A) User (B) System
Solution:
Answer: (B) System