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

[Q]: Sentence1: A hotel that has free parking and in the north part of town. I would like one in the moderate price range. Sentence2: Yes, I'd like the phone number and postcode. Sentence3: The phone number is 01223902091 and the postcode is cb43ax. Sentence4: Where do I get info on hotels? Sentence5: The Riverboat Georgina would work. It's in the north. Do you need more information? Sentence6: Yes please book the The Ashley Hotel for 7 people and 2 nights starting from wednesday. Sentence7: Yeah, happy to assist. Let us know if there is anything else you need. Sentence8: Have a great day! Sentence9: I really have to run. I'm late for work. Goodbye. Sentence10: Okay thank you that is all I need. Sentence11: You can get information here, through our help desk. Sentence12: I was successful in making your reservation. Your reference number is 2W4KNZYJ . Is there anything else I can help you with? Sentence13: I would also like to find a boat attraction in the same area. Sentence14: The Ashley Hotel and the Lovell Lodge meet that criteria, would you like me to book one of them for you? Question: Who has spoken the sentence 8? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: Does it have four stars? Sentence2: Not yet, but can you tell me what time the train arrives in Ely please? Sentence3: acorn guest house is located in 154 chesterton road should i book it for you? Sentence4: I would like to leave on Tuesday after 18:00. Sentence5: It arrives by 20:07! Anything else love? Sentence6: TR5511 leaves Cambridge for Ely at 20.07. Do you need tickets? Sentence7: I've booked your stay at the Acorn Guest House, and your reference number is IT07BRTC . Sentence8: The trip will last 17 minutes. Is there anything else you would like to know? Sentence9: Do you know what day or time you want to leave? Sentence10: Thank you for using Cambridge TownInfo centre. Please consider us for your future travel needs. Sentence11: I need some lodging accommodations. It needs to have free parking and Internet please! Sentence12: I would like someone to book me a place with free parking and internet. Sentence13: That should do it. Thanks so much for your help! Sentence14: I found 29 hotels matching your request. What price range and area of town would you prefer? Sentence15: Thanks a lot. Can you also help me find a train going to Ely? Sentence16: Yes. Please book it for 2 people for 4 nights starting Friday. Sentence17: Yes it does. Shall I book? Sentence18: What is the total travel time on that time? Question: Who has spoken the sentence 15? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Booking was successful. Reference number is : 40GGN5EY . Is there anything else I can assist you with? Sentence2: sure, its moderate, phone is 01223500005 and the postcode is cb11ln, anything else? Sentence3: On wednesday please Sentence4: can you book me at Ashley Hotel for 1 and 3 nights ? Sentence5: Thank you, that'll be all today. Sentence6: There are two hotels that match what you're looking for. The Ashley Hotel and Lovell Lodge. Does either of those sound preferable? Sentence7: Yes, I'm also looking for some information on a restaurant called Efes. I'll need the phone number, price range, and postcode, please? Sentence8: I am looking for a moderately priced hotel in Cambridge. Sentence9: I have three choices for you. Do you have an area that is more convenient for you? Sentence10: No problem! What day are you wanting to check in? Sentence11: Yes, can you check the north please? Sentence12: If the hotel and restaurant are all you need for today, then thank you for contacting Cambridge TownInfo centre. Goodbye. Sentence13: Yes that's what I already asked you to do. Sentence14: Would you like me to book it for you? Question: Who has spoken the sentence 9? (A) User (B) System
[A]:
Answer: (B) System