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

[Q]: Sentence1: 1 person, plese. Sentence2: Sorry, I couldn't find any restaurants that fit that criteria. Sentence3: O booked you at 12:15 to give you extra time, look for a red tesla, they cbr at 07079296786, any other questions? Sentence4: Okay, you're all set with a reservation at La Tasca on Wednesday at 12:30! The reference number is F8VGULKB . Sentence5: Are there any Spanish restaurants available? Sentence6: What time would you like to leave or arrive? Sentence7: I'm sorry, I forgot some of my friends couldn't make it. It will just be myself, and I need the reservation for Wednesday. Sentence8: I have you booked at the Acorns Guesthouse the reference number is QQ2N4M7W . Can I help you with anything else today? Sentence9: I need help finding a 4 star hotel Sentence10: Sorry to tell you this but we actually have no Jamaican restaurants in cambridge. Maybe you would prefer another type of food Sentence11: La Tasca is at 14 - 16 Bridge Street, CB21UF. La Raza is at 4 - 6 Rose Crescent, CB23LL. Would you like a reservation at one of them? Sentence12: That is all I need, thank you, goodbye! Sentence13: Is there one in the centre of town maybe? Sentence14: Goodbye and thank you for using our service! Sentence15: Yes, please. I would like its address and postal code. Sentence16: La Tasca sounds interesting, can you book a table for my group at 12:30? Sentence17: How many people are in your group? Sentence18: no, but I need free parking and wifi. Sentence19: I have 19 hotels in Cambridge that fit those requirements. Do you have a price range in mind? Sentence20: nah, I just need it for 4 nights starting from wednesday. maybe look at moderately priced hotels? Sentence21: I have several listed is there a particular area you would like? Sentence22: I would want to be able to arrive to the restaurant by the time booked, 12:30! Sentence23: How many of you will be staying there? Sentence24: Yes, please. I'm looking for a jamaican restaurant that is moderately priced. Sentence25: There are two spanish restaurants. Would you like more information? Sentence26: i also need a taxi to commute between the two places Question: Who has spoken the sentence 12? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: The area doesn't really matter, can you pick a popular me for me? Sentence2: hmm, what about chinese food? Sentence3: You're all set! It's a grey volvo. If you need to contact the driver for any reason, the contact number is 07174343971. Sentence4: Yes, I'd like to take my husband there at 11:30 on Wednesday. Sentence5: Sure I've found an expensive place named yu garden in the east, would you like me to book something? Sentence6: Thank you, you were a great help. That's all I needed. Sentence7: have great day too Sentence8: welcome and have a great day Sentence9: Booked! The table will be reserved for 15 minutes. Your Reference number: 5R5C75ZP . Sentence10: Would you like me to reserve it for you. Sentence11: Sure. What time would you like to leave? Sentence12: I'd also like to book a taxi from the pool to the restaurant that arrives by the reservation time. Sentence13: Parkside Pools is centrally located and their address is Gonville Place. Is there anything else I can help you with today? Sentence14: i am looking for a swimming pool. Sentence15: I'll be going now. Good-bye Sentence16: As long as it arrives by 11:30 it doesnt matter when it leaves Sentence17: Sure, which part of town are you looking for? Sentence18: I'm looking for a sri lankan restaurant. Sentence19: Yes, please. I'll need the contact number and car type. Sentence20: I'm sorry. I'm not able to find anything that meets your criteria. Would you like to try a different type of food? Question: Who has spoken the sentence 17? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: From Leicester to Cambridge, please. Sentence2: The postcode is cb21rt and the address is Doubletree by Hilton Cambridge Granta Place Mill Lane, will that be all? Sentence3: Okay, we have a LOT of trains leaving after that time. What is your starting point and destination? Sentence4: Thank you for using Cambridge TownInfo centre. Please consider us for your future travel needs. Sentence5: Try riverside brasserie, it is located at Doubletree by Hilton Cambridge Granta Place Mill Lane Sentence6: Is that in the centre of town? Is it moderately priced? Sentence7: OK, the TR9776 leaves at 11:09 and arrives at 12:54, the cost is 37.80 pounds, do you want me to book you? Sentence8: Ok, you are booked. Your reference number is OYDBAUOS . The total is 37.79 GBP payable at the station . Is there anything else I can help you with? Sentence9: I just need the adress and post code. Sentence10: I am looking for a restaurant that serves Modern European food at a reasonable price. Sentence11: It is indeed in the Centre and moderately priced. Would you like me to book a table for you? Sentence12: Yes please book the train for 1 person and make sure you give me the reference number. Sentence13: I also need to take a train on wednesday, leaving after 10:15. Sentence14: I don't think so. That was everything. Thanks. Goodbye. Question: Who has spoken the sentence 13? (A) User (B) System
[A]:
Answer: (B) System