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

Sentence1: I would prefer one of the expensive places. Need to impress my guests, you know? Sentence2: I see one moderately priced Indian restaurant in that area, and several expensive ones. Do you have a preference? Sentence3: Actually, I would like to book the hotel for 6 people for 4 nights starting on Sunday. Sentence4: I want an expensive place to stay in the west side. Sentence5: Okay, the phone number is 01480446000 for your convenience. Is there anything else I can help you with? Sentence6: There are three expensive Indian Restaurants in that area. Can I recommend Tandoori Palace? Sentence7: Thank you, you have a good day! Sentence8: I don't really need internet, but that sounds like everything else I want. Yes, I'd like you to book it. Sentence9: Yes, is 3 nights possible? Could I also please have a reference number? Sentence10: I was not able to reserve a table for you at that time. Is there a different day or time slot that you would like? Sentence11: Booking was not possible. Would you like to try a shorter stay, fewer rooms, or another day? Sentence12: Great! I have a table for 6 people at 11:30 onSundar at Tandoori Palace, Reference Number 3BMGPAN3 . Is there anything else I can do for you? Sentence13: I will hold off on the booking today I think I have all I need Sentence14: No thank you, that is all I needed! Sentence15: Thank you. I would like to make reservations for my party to have dinner one night near the hotel. We would like to go to a restaurant that serves Indian food, if possible. Sentence16: Great, the booking was successful. Your reference number is HJHE475H . Is there anything else I can help you with? Sentence17: OK, what is your arrival date, number of nights, and number of people in your party? Sentence18: Yes, that sounds good. Please book it for the same 6 people at 12:30 on Sunday. Sentence19: The Huntingdon Marriott Hotel is an expensive, 4-star hotel in the west that offers free internet and parking. Would you like me to book this for you? Sentence20: Yes, how about 11:30 instead? Please send reference number for the booking. Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: Okay! What time do you need it for? Sentence2: Can I help you with anything else? Sentence3: That is all I need today thank you. Sentence4: I need to arrive by 04:45 Sentence5: I need a taxi to come to curry garden and take me to nandos. Sentence6: Have a wonderful day! It was a pleasure to serve you. Sentence7: That is all. Good bye. Sentence8: I have booked you a white volvo, contact number is 07985113779. Is there anything else? Question: Who has spoken the sentence 1? (A) User (B) System
Answer: (B) System

Sentence1: That's it. Thanks. Sentence2: Peking restaurant has good reviews would you like that? Sentence3: All right, what else can I help you with? Sentence4: No thank you, I don't need a reservation. Sentence5: I prefer Chinese food thanks. Sentence6: Can you locate an expensive restaurant in the south? Sentence7: Absolutely. The Peking Restaurant is located at 10 Homerton Street, City Centre. Their postcode is cb28nx. Can I reserve you a table by chance? Sentence8: You are welcome. Have a lovely day. Sentence9: That sounds good. Can I have the postcode and address please? Sentence10: I sure can. Do you prefer Chinese, Italian, Indian or Mexican food? Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User