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

[EX 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
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I'm sorry can I help you with anything else? Sentence2: Booking completed! Booked car type blue honda Contact number 07444279931 Sentence3: Can you help me book a taxi? Sentence4: What is your destination? Sentence5: I need to leave the attraction by 15:15 and arrive at the hotel. Sentence6: No thank you. That is all. Sentence7: No preference. You pick. Sentence8: Definitely - Cambridge has many guesthouses. Is there a particular area or price range you had in mind? Sentence9: Thank you. I'm also looking for a place to go in the centre. I'll need the postcode for the attraction. Sentence10: Hi, can you help me find a guesthouse to stay at? Sentence11: You're welcome, glad I could help. Sentence12: Yes please for 2 nights starting from Sunday for 4 people. I will need a reference number. Sentence13: There are many places in the centre of town. Do you have any further preferences or would you like me to recommend one? Sentence14: I do not have a price range in mind. Sentence15: old schools is my favourite. can i give you the details? Sentence16: Your reservation for 4 at alexander bed and breakfast this Sunday for 3 days 2 nights was successful. Your Reference number is : 1FDBJB3A . Sentence17: Thank you very much. Sentence18: Thanks you have a nice day as well. Sentence19: Have a nice day. Sentence20: Sure, I will work on booking that for you. Sentence21: Alexander bed and breakfast comes highly recommended. It is located in the centre area and has a cheap price range, shall I book there for you? Sentence22: That is all I needed thank you for your time. Sentence23: Ok, I have booked you a yellow volvo, contact number 07291792842, is there anything else you need? Sentence24: I do not have a preference. Sentence25: Do you have a price range? Sentence26: Yes I need their postcode. Sentence27: Old Schools postcode is cb21tt. Will there be anything else? Sentence28: Did you get the reference number yet??? Question: Who has spoken the sentence 26? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: How about moderate priced guesthouses that are 4 stars? Sentence2: Sure, please provide the address and phone number as well. Sentence3: Yes, how about the acorn guest house? Sentence4: I'm sorry, I would prefer an expensive guesthouse that includes free parking. Sentence5: I'm sorry. I'm not finding any results that meet your criteria. Would you like to try a different hotel type or price range? Sentence6: The Acorn Guest House is a very popular hotel. Their phone number is 01223353888 and address is 154 chesterton road. Would you like to book a room? Sentence7: Yes, the phone number is 01223352607. Sentence8: Could I get the address as well? Sentence9: It looks like there aren't any 4 star guesthouses that are expensive. Would you like me to try a different star rating or price? Sentence10: I'm looking for an italian restaurant that is moderately priced. Sentence11: Booking was successful. The table will be reserved for 15 minutes. Reference number is G9YTGB8M . Do you need anything else? Sentence12: how about a moderate price range? Sentence13: Stazione restaurant and coffee bar is available Sentence14: I'm looking for an expensive guesthouse with a 4 star rating which provides free parking. Is that possible? Sentence15: Could you give me the address and phone number of both please? Sentence16: The address is Market Hill City Centre. Is there anything else you need? Sentence17: No thank you I don't need reservations today. Sentence18: Is there anything more I can assist you with today? Sentence19: No. All set. Thanks. Sentence20: Thank you for contacting us and have a nice day. Sentence21: We have 9 moderately priced guesthouses that are 4 stars and provide free parking. Would you like a recommendation from me? Sentence22: I would like to book a table there for 6 people at 11:00 on sunday. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]:
Answer: (A) User