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

Sentence1: I don't have a preference. Can you recommend one? Sentence2: Thank you that's all the help I need. Goodbye Sentence3: I can work on booking this for you. Sentence4: Sounds great, thanks. I am also looking for a restaurant in the Centre that serves gastropub food. Sentence5: I'm looking to visit a museum in Cambridge. Can you tell me a little about what you have? Sentence6: I would also like to book a taxi to get between the museum and the restaurant. Sentence7: I will make a booking for backstreet bistro,Booking complete here is your reference number T9TB8FBO . Sentence8: I need to arrive at the restaurant by 14:45. I'll need the contact number and car type as well please. Sentence9: Sure. Is there anything else I can assist you with today? Sentence10: It really doesn't matter money is no object. I need a table for 8 on thursday at 14:45. As long as its a gastropub in the centre of town Sentence11: Okay I have booked your taxi. The contact number is 07498867892 and the car is a blue tesla. Sentence12: Cambridge Artworks is a great place and has free entry. Their address and phone number is 5 Greens Road 01223902168. Sentence13: awesome! thanks for all the info Sentence14: There are 23 museums that match that criteria. What area should the museum be in? Sentence15: Okay, there are 3 different restaurants. What is your price range? Sentence16: Thanks for using our service today! Question: Who has spoken the sentence 7? (A) User (B) System
Answer: (B) System

Sentence1: Yes please. Please make sure the restaurant has a table available for booking for seven people on sunday at 13:15. Sentence2: Glad to be of service! Goodbye! Sentence3: I would really like to get really great Chinese food. Can you suggest an expensive chinese place? Sentence4: Yes! There are 5 that I have found. One in the East, 2 South, 1 North and 1 Centre. Would you like the address of any of them? Sentence5: I have 4 swimming pools to choose from. 2 are in the north, and I have one in the east and centre. Do you have a preference? Sentence6: I don't have a area of town preference. Sentence7: Sure! Abbey Pool and Astroturf Pitch is at Pool Way, Whitehill Road, off Newmarket Road. Would you like the phone number? Sentence8: What type of food. Sentence9: Hey I am looking for a swimming pool to go to while in Cambridge. Can you find me one Sentence10: Great that's all I needed. Thanks for your help. Bye. Sentence11: naw, but i'm looking for some food Sentence12: Sure, there are a number of options. Is there a particular area of town you were interested in? Sentence13: I think the one in the East would be best. Can you give me an address for it? Sentence14: I booked you a table at Hakka (ref #7K0C5AJN). They're on the east side at Milton Road, Chesterton. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User

Sentence1: Enjoy your trip! Sentence2: Yes, is there an entrance fee? Sentence3: That takes care of my needs today. Take care. Goodbye. Sentence4: price is 4.40 pounds should i book it for you? Sentence5: Yes, please book it for 8 tickets for me and pleases give me the reference number. Sentence6: I would be happy to assist you in finding a train! Can you please advise where you will be traveling to? Sentence7: I have 3 options to choose from: arrival times of 5:52, 7:52 and 9:52. Which do you prefer? Sentence8: I'm also looking for information on the Whipple Museum of the History of Science. Sentence9: I was able to book 8 Train tickets for you at the cost of 35.2 GBP, which is payable at the station. The reference number is 27OF6EO3 . Sentence10: The entrance fee is free. Is there anything else I could help you with? Sentence11: Cambridge. I need to get there by 11:15. Sentence12: I will take 9:52 Sentence13: I need a train. The train should depart from ely and should leave on thursday. Sentence14: Okay, it's a museum in the city centre. Would you like more information on it? Question: Who has spoken the sentence 10? (A) User (B) System

Answer: (A) User