Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: How about 9:45? Sentence2: I need to travel on Friday sometime after 13:45. Can you tell me whats available? Sentence3: I would like to book a train leaving Cambridge that goes to London Liverpool Street please. Sentence4: My apologies, there are none that serve Jamaican. Would you like to look for a different type of cuisine? Sentence5: I was unable to book for that timeslot. Can you give me another timeslot to work with? Sentence6: How about one that serves British food in the same area? Sentence7: I have found several, how about this one? The Oak Bistro, price rang is moderate, phone is 01223323361, post code cb21eg, 6 Lensfield Road. Sentence8: Great that's all the information I needed on the train. Sentence9: You are welcome. Enjoy your stay. Bye. Sentence10: Thank you. That's all I needed. Sentence11: Can you please book for 4 on Friday at 10:45? Sentence12: I have train TR4187 that leaves at 13:59 and arrives by 15:27 in london liverpool street. Would you like me to book that for you? Sentence13: There is a train which leaves every two hours between 5:59 and 13:59 that costs 16.60 pounds. The duration of the trip is 88 minutes. Sentence14: What about one in the centre? Sentence15: I also need to find a restaurant. Preferably one that serves Jamaican food. Can you find that for me? Sentence16: Excellent! Can I help you with anything else today? Sentence17: Your table is reserved. Reference number 66TP23A1 . Sentence18: Unfortunately there aren't any restaurants serving Jamaican food in the area, would you like to try another type of food? Question: Who has spoken the sentence 9? (A) User (B) System
Output:
Answer: (B) System