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

[Q]: Sentence1: There are 8 trains. The latest one that would get you there on time leaves at 8:48 and arrives 9:38. Would you like me to book a ticket for you? Sentence2: Where are you traveling to and from? Sentence3: Thank you very much for all of your help. Sentence4: I am looking for a restaurant called Galleria. Sentence5: Would it be possible to book the same restaurant at 15:45? Sentence6: The travel time is 50 minutes and it costs 13.20 pounds. Sentence7: Okay you are welcome! Thank you for calling. Sentence8: I have made the reservation for 3 for Sunday at 15:45 at Galleria. Your reference number is DUY4H6WY . Is there anything else I can do for you? Sentence9: I've found Galleria, it is located at 33 Bridge Street in town centre. Would you like to make a reservation? Sentence10: Departure is Peterborough and arrival is Cambridge. Sentence11: Yes. I would also like to take a train on Sunday arriving by 09:45. Can you help me with that? Sentence12: Yes! I'd like a reservation for this Sunday at 16:45 for three people. Sentence13: Please give me travel time and the price, please. Sentence14: I'm sorry, but that time and day is unavailable. Would you like to try another day and/or time? Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: It doesn't matter, I just need to get there. Sentence2: I am sorry but that time is not available. Would you like to try another time or day perhaps? Sentence3: There is a restaurant called restaurant alimentum that meets your criteria. Sentence4: It's all booked, you're looking for a black volkswagen and their contact number is 07263669645. Sentence5: As a matter of fact, it appears all of the gastropubs in Cambridge have closed. Is there anything else that interests you? Sentence6: Have a great day! Sentence7: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 8HB62Z6W . Is there anything else I can help you with? Sentence8: Sure. What time would you like to leave the restaurant? Sentence9: I am looking for a gastropub in the south. Sentence10: The address is cambridge leisure park, clifton way. Can I do anything else for you? Sentence11: Yes, I'd like to see some entertainment near the restaurant. Could you recommend me something good? Sentence12: Are there any Gastropubs in town? Sentence13: Yes, it is. Nusha is in the South as well. Sentence14: Yes, I would like to book a taxi from the restaurant to the entertainment. Sentence15: How about Tenpin in the south? Sentence16: Great, thank you so much for your help! That's everything I'll need today! Sentence17: Thank you for contacting Cambridge TownInfo centre. Goodbye! Sentence18: That will do. Please get me their address. Sentence19: How about a modern European cuisine in the south area? Sentence20: Let's book that for 12:45 on Tuesday. It will be for 7 people. Sentence21: I'm sorry I couldn't find any Gastropubs in the South. Is there another type or area which you would like to try? Sentence22: Splendid! Thank you for all your help. That's all I need. Goodbye. Sentence23: Could you try 11:45 please? Sentence24: Is it located near Alimentum? I'm looking for something in the same area as the restaurant. Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: I booked you a Taxi. the contact # is: Contact number: 07076540763. Is there anything else i can do for you? Sentence2: I found Sitar Tandoori for you. It is located in east part of town. It is in the expensive price range and serves Indian food. Sentence3: That was all I needed. Thanks for all your help. Sentence4: Great! There are 13 places to stay in the north. Eleven of them are guesthouses and 2 are hotels. Do you have a preference? Sentence5: The Ashley Hotel at 74 Chesterton Road is nice. Can I book a room for you? Sentence6: I would like to find a hotel, preferable one that is moderately priced. Sentence7: What is the car type? Sentence8: You're welcome. Have a great trip. Sentence9: Please feel free to contact us with any other questions you have! Have a great day! Sentence10: What's their postcode? Sentence11: I'm sorry that I forgot to mention it! It will be a yellow audi. How else can I help today? Sentence12: Can I possibly get their phone number? Sentence13: The postcode is cb41er. Do you need anything else today? Sentence14: I am looking for a restaurant a friend recommended. It is called the sitar tandoori. Sentence15: I'm looking for a place to stay in the north. Sentence16: There phone number is 01223350059. Do you require any more assistance? Sentence17: Thank you kind person for helping me! Sentence18: Thanks for the info, can you also get me a taxi from the hotel to the restaurant? I need the taxi to be there by 04:15. Question: Who has spoken the sentence 11? (A) User (B) System
[A]:
Answer: (B) System