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

Ex Input:
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

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: Tuesday please at 18:15 for 6 people. Sentence2: Your booking at the Gonville Hotel was successful. The reference number is FHD472H3 . Can I help with anything else today? Sentence3: We have an expensive hotel called gonville hotel with free internet and parking. Would you be interested in booking a room here? Sentence4: Thanks, you have been very helpful. That is all I needed. Bye. Sentence5: I 'd like to find a hotel in the same area, one with three stars. Sentence6: What sort of dining does Cambridge offer in the centre, in the moderate price range? Sentence7: Yes it has free wifi and free parking. Sentence8: There are 21 different choices. What kind of food are you looking for? Sentence9: Your table at Ali Baba is booked, reference #NYH3ZPQN . Is there anything else I can help you with today? Sentence10: That sounds perfect. Can you book a reservation for 5 nights starting on Tuesday for 6 people? Sentence11: That will work can you make a reservation and send me the reference number please? Sentence12: I would like some christmas food. Sentence13: How about somewhere with Lebanese food? Sentence14: Thank you for using Cambridge TownInfo. Have a great day! Sentence15: Does it have free wifi? Sentence16: I'm sorry. I could not find a restaurant that meets that criteria. Would you like to try something else? Sentence17: of course, what day shall i make the reservation for? Sentence18: Yes, there is a moderately priced Lebanese restaraunt in the centre named Ali Baba. How does that sound? Question: Who has spoken the sentence 9? (A) User (B) System

Ex Output:
Answer: (B) System

Ex Input:
Sentence1: i want to book it for 1 people and 3 nights starting from tuesday. Sentence2: Not really, but I do need free parking in expensive range Sentence3: I have a number of guesthouses available, do you have a location preference? Sentence4: That's all, I'm gonna need. Thanks. Sentence5: alexander bed and breakfast would suit your needs. How many people will be staying and for how many days? Sentence6: what about the one with a cheap range? Sentence7: Let's go with the cheap place. It will be the same day, same people, and we'd like to dine at 14:15. Sentence8: Ok, your taxi will be a red lexus. Its contact number is 07558129121. Is there anything else I can help you with today? Sentence9: What's your price range? I recommend the Ugly Duckling, but it's expensive. Charlie Chan is a good, cheap place, and Lan Hong House is in the middle, price-wise. Sentence10: I have seven cheap 4 star guesthouses with free parking in the cheap range. One in the center, three in the east and one each in the north, south and west. Sentence11: Can you find me a guesthouse with a 4 star rating? Sentence12: Thank you for using our service today? Sentence13: I also would like to find a chinese restaurant in the centre. Sentence14: No thank you that will be all Sentence15: Reference number is : BL0Z1OXC . Anything else I can help with? Sentence16: I'm sorry, but we don't have anything that meets your requests. Would you like to change what you're looking for? Maybe I could help you with something else? Sentence17: Actually, I will need to book a taxi to commute between the hotel and restaurant. I want to arrive at the restaurant by the booked time. Sentence18: Can you recommend one? I need a reservation for tuesday Sentence19: Booking was successful and your table will be reserved for 15 minutes. The reference number is DJAKWB3Y . Is there anything else I can help you with? Sentence20: Thank you again for using our service, enjoy your stay! Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:
Answer: (B) System