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

[Q]: Sentence1: I'd like to find some place to go on the east side of town. Sentence2: Thank you. Have a good day, goodbye. Sentence3: I can certainly suggest something for you. I have 10 options. Do you prefer an entertainment venue, or perhaps a museum or park, etc? Sentence4: Sounds great. That's all I needed. Thank you! Sentence5: I would prefer just anything in the east, can you give me the address and attraction type of one? Sentence6: No problem. How does the Funky Fun House sound? It is standard entertainment and it is located at 8 mercers row, mercers row industrial estate. Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: What area would you like to stay in? Sentence2: I need it for 7 people. 5 nights starting Sunday. Sentence3: Which of the 2 hotels should I book for you? Sentence4: Are there any amenities that you are looking for? Parking? Internet? Sentence5: TR2021 is leaving at 20:24 would that work for you? Sentence6: I don't really have a preference for area. But I would like it to be a hotel rather than a guesthouse. And I would love free parking. Sentence7: I'd like free parking. Sentence8: How about the Ashley Hotel? Sentence9: Booking was successful, the total fee is 56.56 GBP payable at the station . Reference number is : EZIAXWCQ . Can I help you with anything else? Sentence10: Great! I'm glad I could be of help. Have a good day. Sentence11: We have ashley hotel and lovell lodge, shall I book you for one of the two? Sentence12: I am also looking for a train departing from stansted airport going to cambridge on sunday. I need to leave after 19:30. Sentence13: I'm looking for a place to stay in Cambridge, moderate price for a hotel. Sentence14: Yes, please make a booking for my group. We'll all be traveling together. Sentence15: Thank you that is all I needed today. Sentence16: Booking was successful. Reference number is L1S8JNAC . Do you need anything else? Question: Who has spoken the sentence 4? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: TR5694 cambridge broxbourne friday 16:01 17:01 17.90 pounds 60 minutes Sentence2: Booking was successful, the total fee is 14.32 GBP payable at the station . Reference number is : EWSOVUHU . Sentence3: Is there any that are closer to leaving at 15:15? Sentence4: Yes, I am leaving from Cambrige. How long is the travel time? Sentence5: Please confirm you are leaving from Cambridge. If yes, TR6870 leaving 16:01, hourly, is the closest time. 15:01 is too early. Sentence6: I am trying to find a train leaving after 15:15 to go to broxbourne. Sentence7: Thank you, good bye Sentence8: Okay. Thank you for all of your help. Have a good day now. Sentence9: Could you please tell me the train ID, arrival time, and travel time? Sentence10: Which day were you planning to travel to Broxbourne? Sentence11: I need all three things please, train id, arrival time and travel time. Sentence12: The travel time is 60 minutes. Sentence13: I am looking at traveling on Sunday. Sentence14: Read the previous lines please! number TR6870, arrival 17:01, travel time 60 minutes. Question: Who has spoken the sentence 2? (A) User (B) System
[A]:
Answer: (A) User