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

[Q]: Sentence1: i want some mexican food. Sentence2: Dojo Noodle Bar serves asian oriental food and is located in the centre of town. The price range is cheap. Sentence3: The phone number for dojo noodle bar is 01223 363471. Would you like any other information? Sentence4: I don't care. Sentence5: You're welcome. Goodbye. Sentence6: We have four Asian oriental restaurants in centre. What price range do you prefer? Sentence7: What is the phone number? Sentence8: No, thank you, that's all I need. Thank you and goodbye! Sentence9: The only listing for Mexican food is Chiquito Restaurant Bar. How else may I assist you? Sentence10: I want a restaurant in the centre and serves asian oriental food? What is the phone number? Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Thanks again for helping to find me a place to eat. I have the reference number T44KC552. Sentence2: I am looking for a Cuban food place, in the east. Sentence3: No, thank you. You have been very helpful. Have a great day. Sentence4: Here is the address and the phone number: 7 Barnwell Road Fen Ditton, 01223244955. Sentence5: Yes, try that. Sentence6: Can you check again? The only thing I'm interested in is a moderately priced Cuban restaurant in the east. Sentence7: I apologize booking was unsuccessful. Would you like me to try Rajmahal Sentence8: Do you have a moderately priced Indian restaurant in the east? Sentence9: Yes I have 2. Curry Prince and Rajmahal. Sentence10: I will try the Curry Prince. Can you book a table for 4 people on Monday at 17:30? Sentence11: I have you at Rajmahal, Reference number is : T44KC552 . Anything else you need? Sentence12: I am sorry but there aren't any restaurants matching your criteria. Can I help you with something else? Sentence13: Enjoy your meal at the rajmahal. Have a great day. Sentence14: I apologize I am still not showing any restaurants that meet your criteria. Is there another type of cuisine you would prefer? Question: Who has spoken the sentence 7? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: I can't wait to try it. I'm not ready to make a reservation yet. Thanks for your help. I'll call back. Goodbye. Sentence2: I am terribly sorry there aren't any, another type perhaps? Sentence3: I have train TR1575 that leaves at 15:09 and arrives in Cambridge at 16:54. Would that work for you? Sentence4: I need information about a train. Sentence5: Yes there are 4 results. How about hotel du vin and bistro? Sentence6: How about european food then? Sentence7: That one is a moderately priced restaurant. It's fantastic! Sentence8: Okay! Where would you like to go? Sentence9: Thanks, I need to find a danish restaurant in the centre of town Sentence10: I have booked you for 3 people on TR1575. Your reference number is Y4IU29UM . Can I do anything else for you? Sentence11: I need a train on thursday that'll arrive by 18:00, traveling from leicester to cambridge. Sentence12: Yes, can you please book me for 3 people and get me a reference number? Sentence13: What is the price range for hotel du vin and bistro? Sentence14: Thank you, we'll be happy to help when you're ready to make a reservation. Have a great day! Question: Who has spoken the sentence 4? (A) User (B) System
[A]:
Answer: (A) User