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

[EX Q]: Sentence1: Thank you so much. The restaurant and train are all I need for now. Have a great day. Goodbye. Sentence2: I'll need to arrive by 11:00 and it should be going to london liverpool street. Sentence3: yeah i need a train too Sentence4: Train TR4259 arrives in London Liverpool Street at 9:27. It's the closest arrival time to 11:00. How many tickets would you like to book? Sentence5: Understood. You have a choice between Sala Thong and Bangkok City. Sentence6: Booking was successful. The table will be reserved for 15 minutes. Reference number is : RARTE3OH . is there anything else i can help you with? Sentence7: Can you help me find some Thai food to eat tonight? Sentence8: I would like 2 tickets please. Sentence9: Ok! Have a great day! Sentence10: I don't care where, just as long as it's expensive! Sentence11: What area of town would you prefer? Sentence12: Sala Thong sounds good. Please make a booking for 2 at 11:45 on Monday Sentence13: Where will you be leaving from? Sentence14: Let's pick something arriving between 11:00 and 10:30. It needs to depart from cambridge and leave on tuesday. Sentence15: There are 21 trains available. Would you like to narrow it down by departure site, day, or departure time? Sentence16: Your reservation for 2 on the TR4259 train was successful, the total fee is 33.2 GBP payable at the station. Your Reference number is : FNRSFZWB Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I am looking for a police station in Parkside Sentence2: Best wishes to you. Have a good day. Sentence3: No. That's all I wanted to know. Thanks. Sentence4: There is a police station in Parkside. The postal code is CB11JG and the phone number is 01223358966. Is there anything else I can help you with? Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: I have found University Arms Hotel on regent street with a 4 star rating and free parking and internet. Would you like to book? Sentence2: I need to book a hotel. I need it to be in the town center, and have a minimum star rating of 4. Sentence3: No that will be all. Sentence4: Alright. If you need anything else, feel free to ask. Have a wonderful trip. Sentence5: The booking was successful. Your reference number is 9NJXK7CF . Is there anything else I can help you with today? Sentence6: I'm sorry, the booking was unsuccessful. Would you like to try to stay for a short period or start on a different day? Sentence7: I'd like to find a korean restaurant in the same area as that hotel. Sentence8: Yes, please book that one. It will need to be for 3 people, and we'll be staying for 5 nights, beginning on Sunday. Sentence9: Would you prefer a guesthouse or a hotel proper? Sentence10: Booking was successful. Reference number is : D09887CW . Is there anything else I can do for you today? Sentence11: What time would you like the reservation? Sentence12: I would like it booked for the same day at 14:15. Can I get a reference number too? Sentence13: Yes please book it for 3 people sunday. Sentence14: Alright, what about only for 3 nights then. I can do 3, book it and give me the reference number please. Sentence15: There's a restaurant called Little Seoul. It's expensive, but also on Regent Street. Would that work? Sentence16: It should be a hotel type with free parking. Question: Who has spoken the sentence 2? (A) User (B) System
[EX A]:
Answer: (A) User