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

Input: Consider Input: Sentence1: Id is TR0625, travel time is 79 minutes and you will arrive by 22:55. Anything else? Sentence2: Actually, could you help find a train as well? To Norwich? Sentence3: I found a train from cambridge to norwich at 05:36 on Friday, will that work? Sentence4: Sunday would be good. Sentence5: No, you've answered all of my questions. Thanks so much for your time. Bye. Sentence6: The Acorn Guesthouse is a 4 star hotel located in the north side of town. It includes free internet and parking. Would you like me to book it for you? Sentence7: I need to leave after 21:30, is there anything closer to that time? Sentence8: Thank you, and thanks again for using our free service. Sentence9: I am trying to find the Acorn Guest House. Sentence10: No, just leave after 21:30. Will you give me the travel time, arrival time and the Train ID? Sentence11: No, thanks. I will go ahead and book it myself. I think I have all the information I need. Thank you. Sentence12: Is there a time you need to arrive by? Sentence13: Yes there are 14 trains. Which day would you like to depart? Sentence14: Thank you for using our service, have a nice day. Question: Who has spoken the sentence 11? (A) User (B) System

Output: Answer: (B) System

Input: Consider Input: Sentence1: No, as long as it has free wifi and parking. Sentence2: Is there a price range or area you prefer? Sentence3: I'm happy to be of service, and I hope you enjoy your stay in Cambridge! Sentence4: There are 9 cheaply priced guesthouses with free parking and Wifi. Is there are certain area of the city you'd like to stay in? Sentence5: I am really looking for italian food. Sentence6: I'm looking for a restaurant in the cheap price range and in the north side of town. Sentence7: It is located in the city centre, anything else? Sentence8: No, just the address, area please. Sentence9: Actually, I apologize for not being more specific, I want to stay in a guesthouse Sentence10: What area is that in Sentence11: We have an Italian and an Indian restaurant that are both inexpensive in the north part of town. Would you like the addresses of those? Sentence12: Yes I am looking for hotel that is cheap have free wifi and free parking. Sentence13: I would recommend the ashley hotel. Sentence14: alexander bed and breakfast address is 56 saint barnabas road in centre. Sentence15: Great! Yes, I'll also need to find a hotel with free parking and free wifi. Sentence16: That is all. Thanks for the help! Bye! Sentence17: Great, thanks for the help! Sentence18: Glad I could help. Do you need assistance with anything else today? Sentence19: Well here is Da Vinci Pizzeria in the north. It's cheap. 20 Milton Road Chesterton. Sentence20: Yes, that would be fine. Can you book a table for 4 at 16:00 on Wednesday? Sentence21: Absolutely. You're booked for 16:00 and the reference number is I3WAD456 . Can I help you with anything else today? Sentence22: Alexander bed and breakfast is in the cheap price range and has both free parking and wifi, would you like a reservation? Question: Who has spoken the sentence 2? (A) User (B) System

Output: Answer: (A) User

Input: Consider Input: Sentence1: need any other help? Sentence2: Great! Enjoy your stay! Sentence3: Does this location include free wifi? Sentence4: I'm also looking for a place to stay in the centre of town that includes free parking. Sentence5: What is your price range? Sentence6: No. Thank you for your help. Sentence7: That's okay, see if you can make the booking for one night instead. Sentence8: That one would be great. Can I get 2 tickets on that train, and the reference number once it's booked? Sentence9: Yes, El Shaddai includes free parking. Would you like to book a stay, or perhaps you would like directions? Sentence10: I'm sorry, that reservation wasn't available. Perhaps you could book another day, or a different length of stay? Sentence11: Yes, I was wondering if you could help me find a train leaving from Cambridge. Sentence12: Does the El Shaddai include free wifi? Sentence13: Certainly. I have now reserved two tickets for you, which you can pay for at the station. Your reference number is 13GQ9S3A . Sentence14: I have train TR7713 that departs at 17:59 and arrives at 19:27. Would that work for you or would you like something earlier? Sentence15: I'd like to go to london liverpool street on Sunday. I need to get there by 21:00. Sentence16: No problem! Where will you be going to and on what day? Sentence17: Can I recommend el shaddia guesthouse? Sentence18: I am looking for a cheap place to stay. Sentence19: Yes it does, would you like me to make a booking for you? Sentence20: The booking was successful! Your reference number is 7V39SM46 . Sentence21: Yes. Could you make it for 2 nights/ 2 people starting on friday. Sentence22: Thank you very much for all your help. Question: Who has spoken the sentence 1? (A) User (B) System
Output: Answer: (B) System