You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: Thanks for handling the restaurant. I will have time to check out the town. Do you have multiple sports in the same area as the restaurant? Sentence2: I need a place to dine that is expensive in the centre. Sentence3: No, that's all I needed. Thanks for your help! Sentence4: Okay, I recommend midsummer house restaurant in Midsummer Common. Would you like a reservation? Sentence5: 01223334860 is the phone number, and entrance is free. Anything else today? Sentence6: Okay, that sounds nice. Can you give me their phone number and tell me their entrance fee? Sentence7: I can help with that. Did you have a price range in mind? Sentence8: Ok, you're all set, the table will be reserved for 15 minutes and your reference number is : 48QP48K1 . Can I help you with anything else? Sentence9: Yes I would love that. I need to make the reservation for 8 people for 16:15 on Thursday. Sentence10: Why don't you try looking for a college in that area instead please Sentence11: No, there aren't any multiple sports places in the centre. Would you like me to check a different part of town? Sentence12: There are 13 colleges in the centre. I recommend downing college. Sentence13: You have a wonderful day and a great trip. Sentence14: Expensive, please. British food. Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I have 23 places. What area would you prefer to be in? Sentence2: There is Cafe Jello Gallery in the west, Cambridge Artworks in the east and Broughton House Gallery in the centre. Does any of those sound appealing? Sentence3: Just the price range and postal code please. Sentence4: Cafe jello gallery postcode is cb30af and the entrance is free, is there anything else I can do for you? Sentence5: Here is the address 529 Newmarket Road Fen Ditton. Sentence6: Do you have an attraction type preference? Sentence7: You're welcome! Enjoy your visit! Sentence8: that is it. thank you for helping me Sentence9: Yes, I would like to see a museum. Can you tell me the postcode and entrance fee for it? Sentence10: I have no particular area preference. Can you list a few for me to select from? Sentence11: Yes could I have their postcode and entrance fee? Sentence12: Can you give me more information about Yu Garden. Sentence13: Of course! It is a chinese cuisine restaurant located in the east. Anything else you would like to know? Sentence14: I am traveling to Cambridge and excited about seeing local tourist attractions, can you help? Sentence15: I am also looking for the restaurant Yu Garden. Sentence16: Their price range is expensive and the postcode is cb58pa. Are you sure that is all you needed? Question: Who has spoken the sentence 13? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: I would like to book a table for 7 people at 11:00 on Tuesday Sentence2: You are welcome, please let us know if you need anything in the future. Sentence3: I'm looking for a particular restaurant called charlie chan. Sentence4: Sure, I have 7 museums in the West. I would recommend the Museum of Classical Archaeology. Would you like a reservation? Sentence5: Your booking was successful. Your reference number is 9RD3X10V . They will hold your table for 15 minutes. Sentence6: Charlie Chan is an inexpensive chinese restaurant in the centre of town. Would you like their phone number or address? Sentence7: No reservation needed but I would like the museum phone number, please. Sentence8: The phone number is 01223335153. May I assist with something else? Sentence9: Great, is there a cool place in the west we could check out? Maybe a museum? Sentence10: That's all for now. Thank you for everything. Question: Who has spoken the sentence 9? (A) User (B) System
Example Output:
Answer: (B) System