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

Ex Input:
Sentence1: Okay great, have a good day. Sentence2: Yes, quite a few! There's Broughton House Gallery, the Whipple Museum of the History of Science, and more. Would you like to know more about them, or the others? Sentence3: Yes, can you book it for 3 people and get me the reference number? Sentence4: Primavera is at 10 King s parade CB2 1st, the phone number is 01233357708. What day would you like to board the train? Sentence5: Could I get the address, phone numbers, and postcodes of them please? I'm also looking for a train from cambridge to broxbourne. Sentence6: Can you find me a multiple sports attraction in the centre? Sentence7: No, actually. I am all finished. Thanks for the help. Goodbye. Sentence8: Train TR9580 departs from Cambridge at 10:01 on Sunday and arrives at Broxbourne at 11:01. Would that work for you? Sentence9: Sorry there's no multiple sports in the centre. Would you like to try a different area? Sentence10: There are 11 museums in the area. They are all free. There are several art museums, an archaelogy museum, and a science museum. Sentence11: Yes I would love some information. Sentence12: Are there any museums in the centre? Sentence13: Sunday, and it should arrive by 12:00. Sentence14: Booking was successful, the total fee is 42.96 GBP payable at the station . Reference number is : IRD8RUWO . Do you need help with anything else? Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User

Ex Input:
Sentence1: The El Shaddai Hotel is located at 41 warkworth street, would yo+u like the phone number? Sentence2: Thank you, goodbye. Sentence3: Can I book a stay there for 1 person for 5 nights starting tuesday please? Sentence4: Nope, that'll do it. Thanks for your help! Sentence5: Your booking was successful, reference number is 8T4AJ6P9, 1 person for 5 nights starting Tuesday at the El Shaddai. Can I help you with anything else? Sentence6: Hello, I would like to find the el shaddai hotel. Can you help me? Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Of course. My computer doesn't tell me what the entrance fee is. The address is The Plugh, Green End, Fen Ditton. Is there anything else I can assist you with? Sentence2: That is it. Thank you so much for your help. Sentence3: Most definitely! We have a wide-range of hotels that offer free wifi and parking. Do you prefer a particular a particular area in Cambridge? Sentence4: I want to start my stay on Sunday for 7 people, 4 nights. Sentence5: Camboats is the one choice for boat attractions in the east. Can I do anything else today? Sentence6: There are no colleges in that area. Should I look in another area? Sentence7: Can you recommend a tour of the college near the hotel? Sentence8: You are very welcome! Enjoy your visit! Sentence9: We are visiting cambridge for the first time and looking for a moderately priced place to stay for 5 nights that includes free parking. Any suggestions? Sentence10: Could you give me the address and entrance fee? Sentence11: What day will you be coming in and how long will you be staying? Sentence12: Why don't you search for a boat attraction instead please Sentence13: Booking was successful. Reference number is : 42Z3RMYG . Sentence14: We have two places to pick from, I recommend the warkworth house, shall I book you? Sentence15: Sure I need rooms for 7 people Sentence16: I think I want somewhere in the east Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:
Answer: (B) System