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

Example Input: Sentence1: I will take the phone number, entrance fee and address of the one you choose for me. Sentence2: I'm looking for some entertainment related places to go in the centre of Cambridge. Sentence3: Okay. How about a boat anywhere in town? Sentence4: I will choose for you the Cambridge punter, their phone number is 07807718591, they are found on 251a Chesterton road, they don't have an entrance fee. Sentence5: There are two boats in the centre, scudamores punting co and the cambridge punter. Would you like more information? Sentence6: I was unable to find any entertainment in the centre. Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: No thank you, goodbye. Sentence2: I'm sorry, there are no Korean restaurants in the north part of town. Can I help you find anything else? Sentence3: Thank you for using our system. Good bye Sentence4: How about any area? Sentence5: I would like a restaurant in the north part of town that serves korean food Sentence6: What is the address and price range? Sentence7: Little Seoul is at 108 Regent Street City Centre and is an expensive restaurant. Do you want the phone number? Sentence8: little seoul is in the centre and serves korean food Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: There is one named the Nirala. WOuld you like me to book it for you? Sentence2: Sure. On what day, for how long, and for how many people? Sentence3: I have that taxi reserved look for a grey tesla with a contact number of 07741826519. Sentence4: Ok. There are two options. There is the aylesbray lodge guest house and the bridge guest house. Which one would you prefer? Sentence5: i have a variety. if you can specify the price to narrow down my options Sentence6: There are four is there an area you prefer to dine in? Sentence7: I need a place to stay in the south of town. Sentence8: Booking was successful. The table will be reserved for 15 minutes. Reference number is : ND2O59QO . Sentence9: We will arrive on Tuesday and stay for 4 nights. There will be 2 of us. Sentence10: No, that is all I need. Thank you so much. Sentence11: How about one in the north? Sentence12: Great, thank you! We will also want to try a moderately priced Indian restaurant. Are there restaurants like that in Cambridge? Sentence13: Yes, please! I need a table for 2 on Tuesday at 16:15? Sentence14: Booking was successful. and the Reference number is : 1JLMP6R2 . Sentence15: Sorry there are none in the south. Sentence16: Moderately priced would be great, and I really need it to have WiFi. Sentence17: I need a taxi to drop me at the restaurant by 16:15. It will pick me up at Bridge Guest House Sentence18: Can I help you with anything else today? Sentence19: Have a lovely day, goodbye. Sentence20: The same area as my hotel. Sentence21: I think I'd like Bridge Guest House please. Can you book it? Sentence22: that is great. thank you Question: Who has spoken the sentence 17? (A) User (B) System
Example Output:
Answer: (B) System