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

[Q]: Sentence1: You're welcome and enjoy your stay. Sentence2: Can you help me find a hotel in the North part of Cambridge? Sentence3: I have two moderately priced hotels in the north for you. The Ashley Hotel and the Lovell Lodge. Would you like me to book one? Sentence4: Great I can take care of that. How many people? How long will you be there and when will your stay start? Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : E4J0YE8W . Anything else. Sentence6: thanks very much to you! I am done now. Farewell! Sentence7: I would like to book the Ashley Hotel. Sentence8: Okay, be on the lookout for a grey honda. The contact # is 07374179224 Sentence9: There will be 7 of us arriving Sunday. We will be staying 3 nights. Sentence10: They do both have internet. Sentence11: Yes I am needing a restaurant that is the same price range as my hotel and in the same area. Sentence12: There are two; The Golden Wok which is a Chinese place, and The Nirala, with Indian cuisine. Which would you prefer? Sentence13: Does it have internet? Sentence14: I will go with The Nirala since I love Indian food. Please book it for 11:00 for the 7 of us on Sunday. Sentence15: I was able to book the room for you the reference number is HQKA3TBW . Can I help you with anything else? Sentence16: Yes, I want a taxi too. I'll need contact number and car type. It should pick me up at the hotel and arrive at restaurant by 11:00 Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: Okay, I've booked 4 tickets. Your reference number is FBZ6Z3NH . Can I help with anything else? Sentence2: the cambridge belfry is a cheap hotel. would you like me to make you a reservation? Sentence3: I don't have a preference, but I would like it to be rated 4 stars. Sentence4: Yes, can i book it for 4 people. Sentence5: Yes. I am also looking for a hotel that has free wifi and a 4 star rating. Sentence6: It is a hotel not guest house. Sentence7: welcome anytime you need us Sentence8: that is all for today and thanks for helping Sentence9: You are booked for 4 nights for 4 people starting on Friday at the Cambridge Belfry. Your reference number is FKV26SLF . May I help you with anything else? Sentence10: Yes, I would like a reservation. Sentence11: I would like it for 4 nights starting Monday for 4 people . Sentence12: Sorry, I want to stay in a guesthouse. Sentence13: What are your arrival details please? Sentence14: I see three options available. Two are expensive and one is cheap. What is your price preference? Sentence15: I appreciate everything. Have a great day. Bye. Sentence16: OK, we have many options for guesthouse in the cheap price range, including wifi. Is there an area you'd like to stay in? Sentence17: Where are you heading, and on what day? Sentence18: I would prefer the cheap one please. Sentence19: I don't think so but before I let you go, I just want to be sure, the cambridge belfry is a guest house, correct? Sentence20: Booking was successful. Reference number is : FKV26SLF Sentence21: Kings Lynn on Friday Sentence22: Can you help me find a train leaving after 12:15 departing from cambridge? Sentence23: thanks and welcome anytime Sentence24: TR8494 leaves at 13:11. Want to book? Question: Who has spoken the sentence 10? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: We have many trains that meet your request, do you have a departure or destination in mind? Sentence2: TR5693 meets all your criteria and arrives by 10:35. Will that work for you? Sentence3: Yes, I need to get to Cambridge. I'll be leaving Norwich. Sentence4: That is all for now. Thank you. Sentence5: I'm looking for a train that leaves on saturday and arrives by 19:00. Sentence6: There is a train on saturday that leaves at 8:16am. Shall I book it? Sentence7: It will be on Saturday as well. Sentence8: No thanks. I'm looking for a place to stay too. Sentence9: Booking was successful. Reference number is : 8XPJYIR0 . Is there anything else I can help you with? Sentence10: What time does that train arrive in Cambridge? That seems terribly early. I just need to be there by 19:00. Sentence11: The train should depart from norwich and should go to cambridge. Sentence12: That sounds good. What's the travel duration on that one? Sentence13: I'd like it to be moderate, any will do. And I'd like to book it for 5 people and 4 nights, starting on the same day. Sentence14: Starting what day? Sentence15: I have the avalon guesthouse in the north area. Would you like that one booked? Sentence16: No problem at all, have a great day. Sentence17: Yes please, for 5 people and 4 nights. Can I please get the reference number too? Sentence18: It is 79 minutes. Sentence19: I can definitely help with that. First of all, may I ask where you will be leaving from and heading to? Sentence20: Okay. Can you help me find a place to stay? I would like it to be 4 stars and I don't need it to have free parking. Sentence21: The train arrives in Cambridge at 9:35. Would you like me to book that for you? Sentence22: There are a lot of options to choose from. Do you know what part of town you'd like? In the north I can recommend Arbury Lodge Guesthouse. Question: Who has spoken the sentence 20? (A) User (B) System
[A]:
Answer: (A) User