Instructions: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: That is all, thanks for your help. Sentence2: And what is your destination? Sentence3: Okay, there are 8 guesthouse listings fitting your requirements. What pricerange are you looking for, may I ask? Sentence4: i am sorry. i have double checked and still do not find anything matching your criteria. would you like a different star rating? Sentence5: No, the hotel needs to have a 4 star rating. Can you please check your system again? Thanks Sentence6: Your reference number is KWH3J4WG . Can I help with anything else? Sentence7: I can help with that. What kind of price range do you have in mind? Sentence8: No, I will need to keep the days the same. Sentence9: i need a hotel with wifi in the north part of town Sentence10: Great!! Can I get the reference number? Sentence11: Perhaps there is a guestroom? Sentence12: How many tickets will you be needing for the train? Sentence13: Booking was successful, the total fee is 141.6 GBP payable at the station Sentence14: I am not successful with this booking. Do you want to modify the days ? Sentence15: Do you have anything moderately priced? I need it for 6 people, for 3 nights, starting monday. Sentence16: They're all moderately priced. I recommend the Avalon. Sentence17: Just something in the north, 4 star and free wifi? Sentence18: The train should leave after 08:45 and should leave on tuesday. Sentence19: Can you give me what time you want to leave at? There are multiple trains leaving Cambridge. Sentence20: I need to check on a train leaving cambridge. Sentence21: I will need 6 train tickets. Sentence22: Your all set at arbury lodge guesthouse. Your ref number is 593EOJ4K, is there anything else today? Sentence23: You are welcome,have a good day. Sentence24: I am open as far as price range, but I would love a 4 star place. Sentence25: Yes, please. That would be great. Sentence26: No but would you like to try another location ? Sentence27: I will be leaving from cambridge and arrive at leicester on tuesday. Sentence28: There doesn't appear to be a 4 star hotel with wifi in the north. Can I interest you in a lower star rating? Sentence29: The earliest train we have leaving is at 9:00. Would you like me to book that for you? Sentence30: Sounds great. Can you book it and provide me a reference number please? Question: Who has spoken the sentence 11? (A) User (B) System
Output:
Answer: (B) System