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

[Q]: Sentence1: I'm looking for an expensive restaurant in the center of town. Sentence2: Certainly. When would you like your taxi to depart? Sentence3: Is there any Turkish cuisine? If so I need the postcode and the address. Sentence4: No, that will be all, thank you! Sentence5: I need to arrive at Cambridge Contemporary Art by 19:15 please. Sentence6: Okay, have a nice day. Sentence7: I don't really care, what do you recommend? I will need the postcode and entrance fee please. Sentence8: I am also looking for museums in the area. Sentence9: How about Cambridge Contemporary Art? The entrance is free and the postcode is cb21su. Enjoy! Sentence10: There are many museums listed in the centre area, what kind of museum are you interested in? Sentence11: No problem. Your taxi has been reserved. Your driver's contact number is 07035811281 and will be driving a grey toyota. Is there anything else you need today? Sentence12: Thank you. I would also like a taxi to commute between the two places. Sentence13: There are many expensive restaurants in the centre of town, is there a specific type of food you would like? Sentence14: The Meze Bar restaurant matches your tastes. It is located at 196 Mill Road City Centre. The postcode is cb13nf. Question: Who has spoken the sentence 10? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: Booked! You leave at 13:17, your reference number is 3WICPFQP, you will pay 141.6 at the station. Sentence2: I am looking to book a train. Sentence3: Could you tell me your location, which area of town or what business you are departing from? Sentence4: Certainly. May I ask where you want to depart from? Sentence5: I need to depart from London Kings Cross and go to Cambridge. Sentence6: We are leaving London Kings Cross and need to do so after 12:45 on Friday for 6 people and can I get the reference number for the booking? Sentence7: Okay thank you. That is all I need. Sentence8: Okay thank you for calling. Sentence9: I would like to leave from the closest station to my location. Sentence10: To clarify, are you looking for a train to Cambridge? All Friday trains from London Kings Cross go to Cambridge. Question: Who has spoken the sentence 8? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: I would like to find a hotel in the north that has free wifi. What are your suggestions? Sentence2: What price range are you interested in ? Sentence3: No and no. I want a 4 star hotel on the north side with free wifi and parking. Sentence4: Yes, how may people and how long will your stay be? Sentence5: There are 7 guesthouses in the north matching your description. I recommend acorn guest house. Sentence6: Can we try another search I really need a place to stay it can be a guesthouse or hotel. Sentence7: Yes that would be great, can you book that please? Sentence8: I prefer a hotel, not a guesthouse. I need a 4 star hotel with free parking and wifi in the north. Sentence9: how many should i book for and how many day? Sentence10: A table for 1 has been booked for Tuesday at 18:15 at Da Vinci Pizzeria. Your confirmation number is BSJDIVC3 . Sentence11: Sorry, I'm not finding anything. Sentence12: Is there a certain star rating you would like it to have? Sentence13: Can we find one that serves Italian food instead then? Sentence14: I'd like to to book it for 1 people and 5 nights starting from tuesday. Sentence15: I need it for 18:15 for one person on a Tuesday. Sentence16: I've booked a single occupancy room at Acorn Guest House for five nights beginning Tuesday. Your reference number is 4KJSRRGA . Can I help you with anything else today? Sentence17: Does it also have free wifi? Sentence18: Thank you for contacting us and have a nice day. Sentence19: Sorry no north indian restaurants in the north. Sentence20: Can you book it for me? Sentence21: Okay, I have 7 options for guesthouses in the North. 6 of them are in the moderate price range and one is is cheap. Which are you looking for? Sentence22: It doesn't really matter, but I would like free parking. Sentence23: da vince pizzeria is the one option in the north, it has cheap pricing, would you like more info or a booking? Sentence24: I have 7 available guesthouses in the north. I would suggest Home from Home it is a great guesthouse. Would you like me to book a room for you? Sentence25: Yes it has free wifi. Sentence26: I am sorry there are no hotels that are available. Would you consider a guesthouse or a different area? Sentence27: I'm looking for a North Indian restaurant that's near the guesthouse. Can you find one? Sentence28: Thanks so much. That is all I need. Have a great day. Bye. Sentence29: Yes, I really like 4 star hotels. If you find one, I'd like to book a room. Sentence30: Okay, I need a guesthouse with free parking, and 4 stars. Price doesn't matter, you can pick one. Question: Who has spoken the sentence 6? (A) User (B) System
[A]:
Answer: (A) User