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

[Q]: Sentence1: There are 44 possible options. What type of attraction are you interested in? Sentence2: No, that's all I need today. Thank you for your help. Sentence3: I can book a 05:54 for you. Sentence4: You're very welcome, is there anything else I can do for you? Sentence5: I need the train to leave after 15:45 please. Also do you have the entrance fee for the Vue Cinema? Sentence6: Sorry, but I do not have the entrance fee for Vue Cinema in my database. I do have a train from stevanage at 15:54 for you, though. Sentence7: Hello, I'm looking for places to go in the city centre. Sentence8: Have a great day then! Sentence9: How about the Vue Cinema located at the grafton centre, east road? Sentence10: Thank you for your help. Sentence11: Great can you make that reservation on the train for 7 people and send me the reference number? Can you also send me the phone number for the Cinema? Sentence12: I don't mind what kind. Sentence13: Sure, what is the entrance fee? Also I need a train that departs from Stevenage on Thursday. Sentence14: The train is booked reference number 3YY4QV9P, and the phone number of the Vue Cinema is 08712240240 Question: Who has spoken the sentence 2? (A) User (B) System
[A]: Answer: (A) User

[Q]: Sentence1: book a table for 6 people at 11:15 on tuesday at the Hakka Sentence2: Sure what type of food are you wanting to eat? Sentence3: Do they have free wifi? Sentence4: I booked the taxi, it is a yellow tesla the contact number is 07809860598. Is there anything else I can assist with today? Sentence5: I will need a taxi to get to the restaurant. Sentence6: Booking was successful, and your reference number is TDVD6XSM . Is there anything else I can assist you with? Sentence7: That is all, thank you for your help. Sentence8: The Hamilton Lodge sounds perfect for you. Would you like to know more? Sentence9: I'm glad we were able to help. Sentence10: I would like to find an expensive restaurant in the north part of Cambridge. Sentence11: Yes, they do have internet. Shall I make a booking? Sentence12: There 2 of them - the Hakka and the hotpot. Which one would you like to try? Sentence13: Yes please. I want 4 nights from tuesday, and for 6 people. Give me the reference number too. Sentence14: I am looking for a hotel in the same area that has free parking. Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 48WF5G7X . Can I help with anything else? Sentence16: How about chinese food? Question: Who has spoken the sentence 15? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: It doesn't really matter, but I need to be there by 9:30. So, the closest I can get to that will be good. Sentence2: What day would you be traveling on? Sentence3: Ok great. The TR1242 will fit your needs. How many tickets would you like to book? Sentence4: It's a 38 minute ride and it will cost 10.10. Sentence5: Your welcome. It has been a pleasure assisting you today. Goodbye Sentence6: There a good number of cheap restaurants in town. Are you looking for a particular type of food? Sentence7: that is all i wanted for today. thanks Sentence8: I will be traveling on Thursday, the same as the restaurant reservation. Sentence9: I have reserved your table. Your reference # is GDP785RS . Is there anything else I can help you with? Sentence10: No, I just want to try something new. Could you suggest a couple of less common cuisines? Sentence11: At 14:00 please Sentence12: Sure, I just need to know what time you would like to dine. Sentence13: Yes, I also need a train departing from bishops stortford going to cambridge. Sentence14: I'm looking for a cheap place to eat. Sentence15: yes, reserve a table for two on thursday Sentence16: There's a train leaving every two hours on Thursday, what time would you like to depart? Sentence17: No thank you, but could you let me know the length of travel and the price of the train tickets? Sentence18: I would recommend the gardenia, a mediterranean restaurant located in the centre of town at 2 Rose Crescent City Centre. Would you be interested in reserving a table? Question: Who has spoken the sentence 13? (A) User (B) System
[A]:
Answer: (B) System