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

Example Input: Sentence1: Sure. Please book for 4 nights starting on the same day. Sentence2: Perfect, thank you! I'm also looking for a guesthouse in the area, preferably in the North. Do you have an option that has free parking? Sentence3: I will go ahead and book that for you. Sentence4: Yes, please. I need 2 tickets. Sentence5: I was able to get 2 tickets. Your total is 28.64 GBP and will be payable at the station. Your reference number is 8UDKCNBU . Sentence6: You're welcome, it was a pleasure serving you! Sentence7: I am leaving from Broxbourne. Sentence8: There are 19 trains running from Broxbourne to Cambridge on Sunday. Is there a particular time when you need to travel? Sentence9: Booking was successful. Your reference number is : I78WB6O9 . Can I help you with anything else today? Sentence10: I'm sorry, how many people would you like to book the room for? Sentence11: I have just the train for you! TR9331 will arrive in Cambridge at 17:32, which is within your desired timeframe. Would you like me to book that for you? Sentence12: We have many in that area with free parking. Might I suggest the acorn guest house? Sentence13: From where are you departing? Sentence14: Can you get me one that'll arrive by 18:30? Sentence15: 2 people, 4 nights, for sunday. Sentence16: I'd like to get to Cambridge by train, but I'm afraid I need to travel on Sunday. Will that be possible? Sentence17: Thank you so much. Can I get the reference number also, please? Sentence18: No. Thanks a bunch! Goodbye Question: Who has spoken the sentence 9? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: It's located in southern Cambridge at cambridge leisure park, clifton way. It's phone number is 00872208000. Do you need anything else? Sentence2: Thank you, that is all I need. Sentence3: thanks alot and is there parking for two cars? Sentence4: What type of food would you like? Sentence5: Actually never mind. I would actually like just find a place to stay in the cheap price range in the west. Sentence6: Yes, can you help me find a place to eat? Sentence7: Sure, I can help you with that. Was there a particular type of cuisine you were interested in? Sentence8: Fantastic, enjoy your trip! Sentence9: I certainly hope so! We have a lot of interesting places to see in Cambridge. Is there something specific you're looking for? Sentence10: There is a place I want to see, can you help me? Sentence11: The hotel I'm looking for should have a star of 4, in the cheap range, somewhere in the West. It'll be for 3 people and 4 nights starting Wednesday. Sentence12: Okay. We have you booked at the Cambridge Belfry. The reference number is Y8Y2HVXE . Sentence13: I am looking for a attraction called cineworld cinema. Sentence14: I'm afraid I can only see that they have parking available. If you need to park two cars, I would phone them on 01954714600. Can I help with anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Okay, there are 11 places to stay that might work. Would you prefer a guesthouse or a hotel? Sentence2: Your booking was successful and reference number is 3ZYK9LO1 . Is there anything else I may assist you with? Sentence3: I need a hotel on the north side with free parking. Sentence4: That leaves us with about 7 options. Can I suggest the Acorn Guest House? It is a 4 star moderately priced guesthouse in the north. Sentence5: I'd prefer a moderate price guesthouse. Sentence6: No, that about covers it. Thanks for your help today. Sentence7: You are welcome. Thank you for using Cambridge TownInfo Centre. Goodbye. Sentence8: That sounds fine. Would you make a reservation for 4 people, 3 nights starting Monday? Question: Who has spoken the sentence 1? (A) User (B) System
Example Output:
Answer: (B) System