You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
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Question: Sentence1: You're welcome. Can I help you with anything else? Sentence2: That is all. Thanks Sentence3: The post code is CB11JG. Sentence4: Thank you, what's the post code? Sentence5: Thank you for your help Sentence6: Cambridge, parkside police telephone number 01223358966. Sentence7: I need to get to the nearest police station, can you assist me? Sentence8: Okay. Have a good day and thanks for using our system. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: Booking was unsuccessful. Do you have a different time preference? Sentence2: Is it in the expensive price range? Sentence3: Yes book a table, thank you. Sentence4: I was happy to help, enjoy your meal. Sentence5: Sure, try booking that one for the same people, date, and time, please. Sentence6: Can you please give me a day and time that you would like to book a table for? Sentence7: No, that's all I need. Thank you for your assistance! Sentence8: I am looking for Korean food, in the Centre of town. Sentence9: No. How about finding another restaurant in the same area and price range. Sentence10: I've booked your table for 7 people on Monday at 13:45 at Kymmoy. Your reference number is 1MS5BUU6 . Is there anything else I can help you with today? Sentence11: There is one Korean restaurant in the centre, Little Seoul. Would you like the address and phone number? Sentence12: How about Kymmoy? It's an Asian restaurant in Expensive price range, located in Centre area. Sentence13: Yes, it is expensive. Are you interested in booking a table there? Sentence14: 13:45 on monday and a table for 7 please. I will need a reference number too. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: Answer: (A) User

Question: Sentence1: Can you give me the ID for this train and the overall travel time? Sentence2: Where will you be leaving from? Sentence3: the cambridge train leaves at 9:11 on sunday. Sentence4: Please let us know if we can assist you in the future. Have a great day! Sentence5: What is your destination? Sentence6: The ID is TR6088 and the total travel time is 47 minutes. Can I be of further assistance today? Sentence7: That is all I will need. Good bye. Sentence8: Yes, that would be fine. What's the train ID and travel time for that one? Sentence9: I would be leaving from Cambridge. Sentence10: im going to kings lynn Sentence11: There is a train leaving at 9:11 would that work for you? Sentence12: Hello. Are there any trains leaving after 8:00 on Saturday? Question: Who has spoken the sentence 7? (A) User (B) System

Answer:
Answer: (B) System