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

[EX Q]: Sentence1: The postcode is cb41da. Is there anything else I can help you with today? Sentence2: There are 23 museums in town. Do you have a specific area you would be interested in? Sentence3: I need the post code also for the museum please. Sentence4: Acorn guest house looks available, would you like to book that? Sentence5: Their postcode is cb13ef. Is there anything else I can assist you with? Sentence6: Cambridge Artworks is in the east. They have no admission and their number is 01223902168 Sentence7: Yeah, can you have a taxi pick me up at the Acorn and take me to the Artworks, say around 24:45? Sentence8: Yes. I need a guesthouse. I should be a 4 star in the north. Parking is not important. Sentence9: I hope you enjoy your stay. Sentence10: No that's all I needed thank you! Sentence11: Not right now, but could you tell me their postcode? Sentence12: Which ever one is your favorite will do. Can I have their contact information and what is the entrance fee? Sentence13: Booking is complete. Your contact number is 07522217444. The car type will be a red tesla. Can I help you with anything else? Sentence14: I'm looking for museums in town. Can you recommend one? Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: We have three places that serve international cuisine that you should like. Do you prefer East or Centre? Sentence2: Yes, that would be great. Can you book a table for 4 people at 11:30 on Sunday? Thanks Sentence3: Can you help me find a corsica restaurant? Sentence4: I also need a train that will arrive by 18:15. Sentence5: TR7786 can have you there by 17:51. It costs 23.60 pounds. Sentence6: Sure, which stations are you traveling between? Sentence7: Then can you find me one that serves international food? Sentence8: The Centre is fine. I need a table for brunch on Sunday. Sentence9: I was able to book your party of 4 into Bloomsbury Restaurant on Sunday at 11:30 , Reference: 4ni28yk5 . Can I assist you further today? Sentence10: There is no restaurant serving corsica food in the town. What is another type of food you would like me to search for? Sentence11: What is the travel time? Sentence12: Goodbye, enjoy the rest of your day! Sentence13: The trip takes 51 minutes. Would you like me to book that train for you? Sentence14: I recommend the Bloomsbury Restaurant. It's located at Crowne Plaza Hotel, 20 Downing Street. It's a moderately priced restaurant. Can I book this for you? Sentence15: not now. that is all i needed. have a good day Sentence16: I'll be leaving Cambridge on Monday and I'd like to arrive to London Kings Cross by 18:15. Is there anything available? What time will it leave? Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: No thanks, that will everything. Sentence2: I hope you enjoy your stay. Contact us anytime. Good bye. Sentence3: I have many. Is there a certain area you are looking for? Sentence4: Thanks that will be all. Goodbye Sentence5: Is there a room at the Lovell Lodge available for 1 person on Saturday for 3 nights? Sentence6: Are there any hotels in that area instead of guesthouses? Sentence7: There are no guesthouses that meet your criteria, can I check something else for you? Sentence8: OK, I booked a table for you at Saffron Brasserie. Your reference number is 65G14AF2 . Can I help with anything else? Sentence9: I'm looking for an expensive indian restaurant. Sentence10: I'd like to find a guesthouse in the north. I want it to have 2 stars. Sentence11: Yes it can be in centre. I would like to book it for 1 person at 20:00 on Saturday. Sentence12: Great, thanks! Now I'd just like a taxi to take me from Lovell Lodge to Saffron Brasserie by 20:00. Please give me the car and contact info Sentence13: There is the ashley hotel or the lovell lodge. Would you like me to make a reservation? Sentence14: Are you sure there is nothing else I can do for you today? Sentence15: Thank you for using our service today. Sentence16: Booking completed! Booked car type : red skoda Contact number : 07515009678 Sentence17: You are all booked! Reference number is 6O4VAAHM . Sentence18: You're welcome, thanks. Question: Who has spoken the sentence 13? (A) User (B) System
[EX A]:
Answer: (B) System