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

[Q]: Sentence1: Id is TR0625, travel time is 79 minutes and you will arrive by 22:55. Anything else? Sentence2: Actually, could you help find a train as well? To Norwich? Sentence3: I found a train from cambridge to norwich at 05:36 on Friday, will that work? Sentence4: Sunday would be good. Sentence5: No, you've answered all of my questions. Thanks so much for your time. Bye. Sentence6: The Acorn Guesthouse is a 4 star hotel located in the north side of town. It includes free internet and parking. Would you like me to book it for you? Sentence7: I need to leave after 21:30, is there anything closer to that time? Sentence8: Thank you, and thanks again for using our free service. Sentence9: I am trying to find the Acorn Guest House. Sentence10: No, just leave after 21:30. Will you give me the travel time, arrival time and the Train ID? Sentence11: No, thanks. I will go ahead and book it myself. I think I have all the information I need. Thank you. Sentence12: Is there a time you need to arrive by? Sentence13: Yes there are 14 trains. Which day would you like to depart? Sentence14: Thank you for using our service, have a nice day. Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System


[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: Yes, I want to book a table for 3 people at 20:00 on thursday. Sentence2: No, I think that's all I need. Thank you! Sentence3: Thank you for using the Cambridge TownInfo service, and have a wonderful day! Sentence4: I found 21 restaurants available, do you have a type of food you would prefer? Sentence5: I'm looking for a moderately priced resturant in the centre of town. Sentence6: Great, I have booked your table for ali baba thursday at 20:00 for 3. Your reference number is 5LY9WSF1 . May I help with anything else? Sentence7: I would like lebanese food. Sentence8: How does Ali Baba? I recommend it. Would you like for me to book a table? Question: Who has spoken the sentence 5? (A) User (B) System
[A]:
Answer: (B) System