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

[EX Q]: Sentence1: Tuesday, going to Cambridge please. Sentence2: The TR8685 arrives by 5:52 and costs 4.40 pounds. Can I book some seats for you? Sentence3: You're welcome. Have a great day. Goodbye. Sentence4: The Broughton House Gallery is located at 98 King St and has free admission. Sentence5: The train should leave on tuesday and should go to cambridge and arrive by 10:15 Sentence6: Thank you, that sounds fine. I see you have included the address and the entrance fee. That's all I need. Thanks very much. Sentence7: Great thank you I also am looking for some place to go in the centre of town. Sentence8: Please for 8 people. Sentence9: I'm looking for a train that arrives by 10:15 and departs from Ely Sentence10: Your booking was successful. The total fee is 35.2 GBP pounds payable at the station and your reservation number is 1OBF5WF2 Sentence11: No problem! What day would you like to leave? Sentence12: Any departure time in mind? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Of course, silly me. I'd like to travel from Cambridge to London Liverpool Street on Saturday, and I need to get there by 19:00 please. Sentence2: Allright. TR0357 departs at 09:39. Would you like me to book you tickets? Sentence3: Thanks for the help, that's all for now. Sentence4: Sure! Their number is 01223227330. Sentence5: Well, I want to leave on Saturday. You tell me the best options. Sentence6: I would like to arrive by 19:00. Sentence7: A ticket from London Liverpool Street to Cambridge is 13.28GBP. Sentence8: I also need their phone number. Sentence9: Can you tell me where you are leaving from and going to? Sentence10: what days look like the best ones to get a great deal on hotel with train ride. Sentence11: Can you help me find a train for my upcoming trip to your city? Sentence12: Absolutely, the address is 15-19 Trumpington Street. Is there anything else I can assist you with today? Sentence13: Ok, I'll have to speak with my friend to see if that price is acceptable. Can I please get the address to the restaurant Hotel Du Vin and Bistro? Sentence14: There are 202 options that day! Do you know what time you want to leave or arrive? Sentence15: Can you give me the ticket price? Sentence16: I hope you have a good trip. Have a nice day. Goedbye Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Booked! fee is 56.32 GBP payable at the station. Reference number: G5DHGHZV . Also do you have an area preference for the hotel? Sentence2: Sure how many tickets? First train leaves at 05:16 and the last 09:16. Do you have specific time in mind? Sentence3: That should work, can I please get a reference number? Also, I am looking for a place to stay in the moderate price range that is 4 stars. Sentence4: No, but I would prefer a guest house. Sentence5: Just any moderate guest house with 4 stars that you recommend. I need it for 3 nights for my group. For the same day we are traveling. Sentence6: We have 33 total entries that match you criteria, location varying from north, south, and east. Would you like any more information on them? Sentence7: The train should depart from norwich and should arrive by 17:15. for 4 people Sentence8: I've booked your group rooms at the Acorn Guesthouse for Saturday, staying 3 nights. Reference number is 8Y6XQ1PM . Need anything else today? Sentence9: Thank you for using our service. Have a great day. Sentence10: I'd like a train leaving from Norwich and arriving by 17:15, please. Sentence11: I'll be going to Cambridge on Saturday. Sentence12: No that was all thank you. Sentence13: How about TR1156, it will depart Norwich at 15:16 and will arrive in Cambridge at 16:35? Does this work for your schedule? Sentence14: Certainly! First, can you confirm the day you are traveling and the destination you are traveling to? Question: Who has spoken the sentence 4? (A) User (B) System
[EX A]:
Answer: (A) User