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

Example Input: Sentence1: book a table for 6 people at 11:15 on tuesday at the Hakka Sentence2: Sure what type of food are you wanting to eat? Sentence3: Do they have free wifi? Sentence4: I booked the taxi, it is a yellow tesla the contact number is 07809860598. Is there anything else I can assist with today? Sentence5: I will need a taxi to get to the restaurant. Sentence6: Booking was successful, and your reference number is TDVD6XSM . Is there anything else I can assist you with? Sentence7: That is all, thank you for your help. Sentence8: The Hamilton Lodge sounds perfect for you. Would you like to know more? Sentence9: I'm glad we were able to help. Sentence10: I would like to find an expensive restaurant in the north part of Cambridge. Sentence11: Yes, they do have internet. Shall I make a booking? Sentence12: There 2 of them - the Hakka and the hotpot. Which one would you like to try? Sentence13: Yes please. I want 4 nights from tuesday, and for 6 people. Give me the reference number too. Sentence14: I am looking for a hotel in the same area that has free parking. Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 48WF5G7X . Can I help with anything else? Sentence16: How about chinese food? Question: Who has spoken the sentence 15? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: There is one concert hall in town, The Man on the Moon, located at 2 norfolk street in the centre of town. Do you need more information? Sentence2: Can you make a recommendation and please provide the entrance fee, phone number, and postcode. Sentence3: Can you help me find a concert hall? Sentence4: Cafe Jello Gallery Phone is o12233289438 and is on 13 Madalene treet Sentence5: Yes, I would consider a museum. Sentence6: great, there are 7 museums in the west. Sentence7: I need a concerthall on the west area of town. Sentence8: I am sorry I have only one listing for the city center. Would you consider other attractions? Question: Who has spoken the sentence 2? (A) User (B) System
Example Output: Answer: (A) User

Example Input: Sentence1: I can most definitely help with that. Is there a certain type of food you would like to try? Sentence2: Yes. Please send be the phone number, address and postcode. Sentence3: Yes, can you book that train for 2 people please? Sentence4: Their number is 01223311053, postcard is cb21uf and they are located on Bridge Street City Centre. Sentence5: I have over 800 possible matches for that request. Where will you be departing from? Sentence6: I am leaving from Kings Lynn on Saturday. Sentence7: Cote is a French restaurant in the centre of town. It is expensive. Would you like me to book you a reservation? Sentence8: Your train has been booked. Reference number CYW95CE2 . Is there anything else I can help you with? Sentence9: Great, thanks. I also need a train. I need to leave cambridge after 12:15. Sentence10: I'm looking for an expensive restaurant in the city centre. Sentence11: I am happy to be able to help. Have a nice day. Goodbye. Sentence12: Yes, I think I would like to try French food. Sentence13: No, thank you. That is all I need today. Sentence14: I have a train TR4003 leaving cambride at 13:00 and arriving at london kings cross at 13:51. Would you like me to make reservations? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User