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

[EX Q]: Sentence1: Reference number is 29IN9CT3 for the acorn guesthouse. Sentence2: Sounds great if it is portuguese. I'll take a reservation for 7 people at 20:00 for the same day. Sentence3: Okay, how about the Acorn Guest House in the north? Sentence4: There is. How does Nandos City Centre sound? Sentence5: Okay, it was my pleasure to assist you! Bye! Sentence6: No, that's all I needed today. Thank you for your help! Goodbye! Sentence7: do you have one the is portuguese food ? Sentence8: I'm looking for information on 4-star rated guesthouses in Cambridge Sentence9: You're all set. Your reference number is 6R5W1RRE and your table will be reserved for 15 minutes. Anything else? Sentence10: I suggest the dojo noodle bar, an asian oriental restaurant, would you like to make a reservation? Sentence11: Sure. Can we spend 5 nights starting on Sunday? I am going to need room for 7 people. Sentence12: I have a number of 4 star guesthouses available, would you like to book one in a particular area? Sentence13: I would also like to eat somewhere cheap in the middle of town. Sentence14: Not really. Could you suggest one with free parking? Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I have the TR4849 train leaving Ely at 13:35 on Monday. Sentence2: How about cityroomz? It is located in the centre of the city, is moderately priced, has 0 stars, and has free wifi. I think it would be perfect ofor you! Sentence3: Perfect, could you also assist me in finding a place to stay? Sentence4: What will be my arrival time in Cambridge and what is the ticket price, please? Sentence5: You're welcome. Have a great day. Good bye. Sentence6: You are booked and your reference number is QUJQMRK7 . Can I help you with anything else? Sentence7: That is everything, thank you for your help. Sentence8: From where will you be departing? Sentence9: I'm looking for a train that goes to cambridge, leaving after 12:30 on monday Sentence10: I am leaving from Ely. Sentence11: Oh I'm not picky on the area. I definitely need free wifi, moderate price, and 0 stars though. Sentence12: That's perfect I need it booked for 8 people for 5 nights starting on Monday. Sentence13: I sure can. What area would you like to stay? Sentence14: The price is 4.40 pounds. You will arrive at 13:52. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Kohinoor is in postcode cb12as. Can I help you with anything else? Sentence2: I'd like a train to Cambridge on Friday Sentence3: I have train TR3292 leaving norwich at 8:16 and arriving in cambridge at 9:35. Would you like to make a reservation for this train? Sentence4: Booking was successful, the total fee is 123.2 GBP payable at the station. Reference number is : 9F6CEFRF . Sentence5: 74 Mill Road City Centre is its address Sentence6: What is the post code please? Sentence7: No. That's all I need for now. Thank you so much. Sentence8: Okay, well, let me know when you have that. Sentence9: That sounds good. Can you book it for 7 people? Sentence10: Yes I will book it for 7 people, and give you the reference number. Sentence11: Yes, I would need to leave after 08:00 please. Sentence12: Your welcome. Please contact us again. Sentence13: Perfect, thank you! I'm also looking for a restaurant called Kohinoor. Can you help me with that as well? Sentence14: Sorry, I will be leaving from Norwich. Sentence15: Can I just confirm your departure station please? Sentence16: I can get you a ticket that leaves london kings cross at 05:17 or do you need a later time than that? Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]:
Answer: (B) System