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

[Q]: Sentence1: Booking was successful, the total fee is 75.59 GBP payable at the station . Reference number is : LQKC8QD2 . You'll be on the TR1193 which will arrive at 12:54. Sentence2: Thanks for helping me, I am all set. Sentence3: Are you looking for a place to visit, eat or stay? Do you need transportation? Sentence4: Can you book 2 tickets for a train that arrives closest to 13:00 please? Sentence5: Great, thank you for visiting us and I hope that you enjoy your stay. Sentence6: I am looking for information in Cambridge Sentence7: I found 7 trains that match your criteria. How early do you want to leave? We have trains running every hour from 05:09 to 11:09 Sentence8: I'm interested in any boats on the westside. Sentence9: Okay great! I also need a train. Can you assist me with that? Sentence10: There are a number of colleges in the west. I suggest magdalene college on magdalene street, cb30ag. Phone is 01223332138. Entrance is free. Sentence11: Sure, I am going to be travelling from Leicester to Cambridge on Monday. I need to arrive by 13:00. Sentence12: Okay what about any atttaction that is in the type of college and if available may i have the entrance fee, phone number and postcode. Sentence13: Yes, I need more information on your trip first. Sentence14: There are no boats on the west side of town right now, do you have something else you'd like to try? Question: Who has spoken the sentence 8? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: No, but I would like to find a cheap priced south african restaurant. Sentence2: I'm sorry, but we don't have and South African restaurants in the area. Is there a different type of food I can help you find? Sentence3: I would say let's look for an attraction first. Can you recommend something to do in the south part of town? Sentence4: I will go with whatever you recommend, I just need the attraction type and postcode. Sentence5: Hi, I am looking forward to trying some of your local restaurants. I do need help with some other places to go in town while I am there though. Sentence6: There are several nice parks in the area as well as theaters and museums. Sentence7: The byard art museum postal code is cb21sj. Can i help you get transportation to and from the museum? Sentence8: Try Portuguese then. Sentence9: Thanks so much for putting up with me! You've been great! Sentence10: 3 people will be dining. Please give me a reference number once you finish the reservation Sentence11: I would rather be in the south area. Sentence12: What is your food type preference? Sentence13: There are two results. Both are cheap. Do you prefer the south or centre? Sentence14: I have finished booking it for Thursday at 12:15 for 3 people at Nando, your reference number is TDQZGM38 . Do you need anything else? Sentence15: Can you book a table for me there on Thursday at 12:15? Sentence16: The only option is nandos. Sentence17: You are welcome enjoy Sentence18: How many people are in your party? Question: Who has spoken the sentence 15? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: You are welcome. Can I help you with anything else today? Sentence2: Hotel du vin and bistro serves european food in the moderate price range. It is located at 15 - 19 Trumpington Street. Would you like to reserve a table? Sentence3: Thank you for using are service and let us know if you have any future needs. Sentence4: I just want the reservation number for Friday please. Sentence5: I'd also like to line up a place to eat, if you could help me with that. Sentence6: No thank you. That will be all. Sentence7: Not really. Can you book one of them for Friday for me? Sentence8: We have 19 that match your search now. Do you have any other preferences? Sentence9: Thank you. How far away is the Restaurant from the hotel? Sentence10: Sure, for how many nights will you be staying? Sentence11: Sure thing! What type of cuisine are you looking for, what area of town, and/or what type of price range? Sentence12: I'd like a moderately priced European restaurant in the centre, please. Sentence13: I have booked a table for 3 at 11:30. Your reference number is OUR3L525 . Can I help with anything else? Sentence14: Yes, please. I need a table on Friday at 12:30 for 3 people, please. Sentence15: I'm happy to book that for you. I just need to know how many nights you'll be staying. Also, how many people? Sentence16: The hotel's address is 78-80 milton road. Sentence17: Sure, your room is booked, and your reference number is USB3QCDT . Is there anything else I can do for you? Sentence18: There are 21 hotels that meet your needs. Would you like to narrow your search by area and/or price range? Sentence19: I need a place to stay in Cambridge that is rated 4 stars and has free wifi. Sentence20: You are set. I have made you a reservation at the Limehouse for Friday night. Sentence21: I also need free parking. Do they have that? Sentence22: How about Friday at 11:30? Please include the reference number for the booking. Sentence23: 4 nights. 3 people. Please include reference number in your response. Sentence24: The booking was unsuccessful, would another day or time work? Sentence25: Thank you for all your help today. Sentence26: Thank you. Can I have the reference number for that reservation please? Question: Who has spoken the sentence 9? (A) User (B) System
[A]:
Answer: (B) System