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: Sounds good. Have a good day. Sentence2: Thank you very much. I will contact them now. Sentence3: Can you give me the contact info for the nearest police station? Sentence4: Sure! The Parkside Police Station is located at Parkside, Cambridge and can be reached at 01223358966. Question: Who has spoken the sentence 2? (A) User (B) System

A: Answer: (A) User
****
Q: Sentence1: I've booked you at fitzbillies restaurant. Your reference number is X5JH9O7F . What else can I help you with today? Sentence2: I'd like something expensive please. Sentence3: Yes, there are a number of options. Did you have a price range in mind? Sentence4: Yes, whatever you recommend will be fine. I need a reservation for monday at 10:15. 2 people please. Sentence5: I'm going to Bishops Stortford. Sentence6: We have three options that meet your criteria. Would you like a recommendation? Sentence7: You're welcome, let me know if I can assist with anything else. Sentence8: yes please and I need the price and arrival time Sentence9: Oh, that's too bad. I do need something in the center. Is there any British food? Sentence10: Just 1 ticket please. Sentence11: How many tickets do you need? Sentence12: I am looking for a train leaving cambridge after 15:00. Sentence13: what is your destination? Sentence14: Yes, I would like to find an expensive Austrian food. Sentence15: The TR2730 leaves at 15:29. Do you want to book it? Sentence16: Booking was successful, the total fee is 10.1 GBP payable at the station. Your reference number is : 12VHBCG9 . Can I help with anything else today? Sentence17: I'm sorry, but there are no Austrian restaurants anywhere in Cambridge. Would you like to try a different type of cuisine? Sentence18: Great! Thank you! That's all I need. Question: Who has spoken the sentence 9? (A) User (B) System

A:
Answer: (B) System
****