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

Example Input: Sentence1: There are 8 trains. The latest one that would get you there on time leaves at 8:48 and arrives 9:38. Would you like me to book a ticket for you? Sentence2: Where are you traveling to and from? Sentence3: Thank you very much for all of your help. Sentence4: I am looking for a restaurant called Galleria. Sentence5: Would it be possible to book the same restaurant at 15:45? Sentence6: The travel time is 50 minutes and it costs 13.20 pounds. Sentence7: Okay you are welcome! Thank you for calling. Sentence8: I have made the reservation for 3 for Sunday at 15:45 at Galleria. Your reference number is DUY4H6WY . Is there anything else I can do for you? Sentence9: I've found Galleria, it is located at 33 Bridge Street in town centre. Would you like to make a reservation? Sentence10: Departure is Peterborough and arrival is Cambridge. Sentence11: Yes. I would also like to take a train on Sunday arriving by 09:45. Can you help me with that? Sentence12: Yes! I'd like a reservation for this Sunday at 16:45 for three people. Sentence13: Please give me travel time and the price, please. Sentence14: I'm sorry, but that time and day is unavailable. Would you like to try another day and/or time? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: i am sorry. i have double checked and still do not find anything matching your criteria. would you like a different star rating? Sentence2: I can help with that. What kind of price range do you have in mind? Sentence3: there are a variety of good things in the north it depends on what you want i will find whatever you request Sentence4: There doesn't appear to be a 4 star hotel with wifi in the north. Can I interest you in a lower star rating? Sentence5: i need a hotel with wifi in the north part of town Sentence6: Perhaps there is a guestroom? Sentence7: No but would you like to try another location ? Sentence8: No, the hotel needs to have a 4 star rating. Can you please check your system again? Thanks Sentence9: I am open as far as price range, but I would love a 4 star place. Sentence10: No I need the north. Is there anything else available in the north? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Yes. I can find it. How many people will be staying? Sentence2: Okay thank you that is all I need. Sentence3: I was hoping to book the City Centre North B and B for a 4 night stay starting Tuesday. Could you please check again? Sentence4: Yes, same price range please. Sentence5: It will be 5 people and 4 nights. Sentence6: Great. Have a great day! Sentence7: Howdy! Is the City Centre North B And B still in business? Sentence8: OK, I got you a booking at the Worth House. It's a 4 star guesthouse also in the Northend. Your reference number is: DVTY60KZ . Can I do anything else for you? Sentence9: I'm sorry, that wasn't available. Can I reserve a different hotel? Sentence10: I am sorry I have no listing for that hotel. Can I help you with any other information? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output:
Answer: (B) System