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

[Q]: Sentence1: Unfortunately, no. La Margherita is an italian place. And, Thanh Binh serves vietnamese. Sentence2: Would you like for me to make you a reservation? Sentence3: Thank you for using the Cambridge Town Info Centre Services! We hope you enjoy your time in Cambridge Sentence4: yes, I want to book a table for 6 people at 12:00 on sunday. Sentence5: Booking was successful. The table will be reserved for 15 minutes. Reference number is : H0BFXWTP . Can I help you with anything else today? Sentence6: Yes, book that for 6 people. I would also like the reference number. Sentence7: Where would you like to go to? Sentence8: Thanh Binh would be perfect. Sentence9: Certainly! There are two great restaurants that meet your criteria. The first in La Margherita and the second is Thanh Binh. Would you like more information on one of them? Sentence10: Your booking was successful. The total fee is 113.28 GBP, which is payable at the station. Your reference number is A5ZWGBQ3 . Sentence11: Yes, could you find me a train from ely that same day? Sentence12: thanks so much you have been very helpful Sentence13: Does it serve creative food? Sentence14: TR3207 will arrive by 07.51. Should I book it? Sentence15: Can you help me find a cheap restaurant in the west side of town? Sentence16: I would like a train to Cambridge, arriving by 09:45. Question: Who has spoken the sentence 10? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: Great. I booked six tickets on TR4095 departing at 11:35 and arriving in cambridge at 11:52. Your confirmation number is W6PWPYOP . Sentence2: I need to book a train for Monday from Ely to Cambridge to arrive by 14:00 for 6 people. Sentence3: What time would you like to leave by? Sentence4: That is all I needed, good day to you. Sentence5: Anytime as long as i arrive by 14:00. Can you provide me with a reference number after booking? Sentence6: Have a great day! Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: I am looking to go to cambridge on tuesday Sentence2: Glad I could be of assistance. Sentence3: Which day are you looking to travel? Sentence4: Thank you very much for your help! Sentence5: I am looking for a train leaving from Norwich. Sentence6: I would like to leave after 09:45 Sentence7: Okay, I have 14 trains on that route leaving hourly on the :16 from 10:16 to 23:16. TR0667 leaves at 10:16, arrives at 11:35, with a total duration of 79 minutes. Sentence8: Yes, a train leaves at 11:16 with the ID TR0839. Sentence9: Ok, do you have one that leaves at 11:16? Can you provide me with the train id for that one? Sentence10: Sure. What time are you looking to leave? Question: Who has spoken the sentence 1? (A) User (B) System
[A]:
Answer: (B) System