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

Example Input: Sentence1: Booking was successful, the total fee is 75.59 GBP payable at the station . Reference number is : LQKC8QD2 . You'll be on the TR1193 which will arrive at 12:54. Sentence2: Thanks for helping me, I am all set. Sentence3: Are you looking for a place to visit, eat or stay? Do you need transportation? Sentence4: Can you book 2 tickets for a train that arrives closest to 13:00 please? Sentence5: Great, thank you for visiting us and I hope that you enjoy your stay. Sentence6: I am looking for information in Cambridge Sentence7: I found 7 trains that match your criteria. How early do you want to leave? We have trains running every hour from 05:09 to 11:09 Sentence8: I'm interested in any boats on the westside. Sentence9: Okay great! I also need a train. Can you assist me with that? Sentence10: There are a number of colleges in the west. I suggest magdalene college on magdalene street, cb30ag. Phone is 01223332138. Entrance is free. Sentence11: Sure, I am going to be travelling from Leicester to Cambridge on Monday. I need to arrive by 13:00. Sentence12: Okay what about any atttaction that is in the type of college and if available may i have the entrance fee, phone number and postcode. Sentence13: Yes, I need more information on your trip first. Sentence14: There are no boats on the west side of town right now, do you have something else you'd like to try? Question: Who has spoken the sentence 8? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Unfortunately, no. La Margherita is an italian place. And, Thanh Binh serves vietnamese. Sentence2: Would you like for me to make you a reservation? Sentence3: Thank you for using the Cambridge Town Info Centre Services! We hope you enjoy your time in Cambridge Sentence4: yes, I want to book a table for 6 people at 12:00 on sunday. Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : H0BFXWTP . Can I help you with anything else today? Sentence6: Yes, book that for 6 people. I would also like the reference number. Sentence7: Where would you like to go to? Sentence8: Thanh Binh would be perfect. Sentence9: Certainly! There are two great restaurants that meet your criteria. The first in La Margherita and the second is Thanh Binh. Would you like more information on one of them? Sentence10: Your booking was successful. The total fee is 113.28 GBP, which is payable at the station. Your reference number is A5ZWGBQ3 . Sentence11: Yes, could you find me a train from ely that same day? Sentence12: thanks so much you have been very helpful Sentence13: Does it serve creative food? Sentence14: TR3207 will arrive by 07.51. Should I book it? Sentence15: Can you help me find a cheap restaurant in the west side of town? Sentence16: I would like a train to Cambridge, arriving by 09:45. Question: Who has spoken the sentence 10? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: Yes, I think that would be fine. Something in the north, please. Sentence2: Sure, choose one for me. Sentence3: How about for 3 nights? Sentence4: Unfortunately, there is no availability at any of the 7 guesthouses for your needs. Do you want to book for another day or for a shorter stay? Sentence5: That did the trick. I was able to book for 2 people for 3 nights starting Wednesday at the Acorn Guest House. Reference number is G591ZUVT . Sentence6: One more question. How many people are in your party? Sentence7: Unfortunately, I don't have any hotels meeting those requirements, but I do have several guesthouses that do. Would you be interested in one of those? Sentence8: You're welcome. Goodbye. Sentence9: Not really. As long as it's in the north it's good. Sentence10: Thank you so much! That's all. Bye! Sentence11: Could you help me find a moderately priced 4 star hotel? Sentence12: Please make the reservation for 2 people. Sentence13: I need it for 4 nights starting on wednesday. Sentence14: There are 7 guesthouses that fit your needs. May I recommend Arbury Lodge Guesthouse? Sentence15: There is no availability at Arbury on Wednesday, unfortunately. Would you like to try a different hotel? Sentence16: Sure, that sounds fine. Can you book that for me? Sentence17: I have 7 guesthouses in the north that are moderately priced and 4 stars, are you looking for internet or parking? Sentence18: When and how long are you wanting to stay? I can see what is available. Question: Who has spoken the sentence 8? (A) User (B) System
Example Output:
Answer: (A) User