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

[Q]: Sentence1: i have booked that for you. your reference number is xhrx4ig7 . Sentence2: I'm confused. Should I look for a restaurant? Sentence3: Will you be leaving from Cambridge. Sentence4: That is helpful.Thanks Sentence5: Yes that will work. I need to book it for 2 people. Sentence6: yes i will be leaving from Cambridge. Sentence7: I would like to leave after 10:30. Sentence8: Okay the booking was successful. The reference number is HZ6B38TH . Sentence9: I'm also looking for a train. I'll be traveling back to Broxbourne on Friday. Sentence10: TR7372 leaves Cambridge at 11:01 and arrives at broxbourne by 12:01, would that train work for you? Sentence11: Yes please. It'll be for 4 nights. Sentence12: In order to book, can you tell me the number of guests, number of nights and the day of the week you want to start your stay? Sentence13: No, I'm sorry. That's all for now. Thank you for all your help. Sentence14: To be clear do you need me to fine you a place to eat? Sentence15: I would like to find out information about a hotel called Warkworth House. Sentence16: Can you find me a expensive cafe to eat at once i get off the train? Sentence17: I need to book it to 2 people for 4 nights starting from wednesday. Sentence18: Warkworth house is a guesthouse in the east area. It is moderate pricing with 4 stars. It offers free parking and internet. Would you like a reservation? Sentence19: What time would you like to leave around? Sentence20: I actually don't need a place to eat. Thank you, that is all. Sentence21: Thank you for using this service good bye Sentence22: What type of food would you like? Sentence23: Thank you. Can I get a reference number for the booking? Sentence24: I will go ahead and book your room. Question: Who has spoken the sentence 8? (A) User (B) System
[A]: Answer: (A) User


[Q]: Sentence1: There's a lot to do in the south. There's a cinema, entertainment, museum, nightclub, park, and theatre. What sounds good to you? Sentence2: Maybe we can do a picnic in the park. Can you tell me about what's available? Sentence3: That sounds great, thank you. I'm also looking on information on trains arriving from cambridge by 15:15. Sentence4: you're welcome. i hope you'll have a wonderful and adventurous picnic. Goodbye Sentence5: How about wandlebury country park that is located in the south park of town? It is also free. Sentence6: No thank you. Sentence7: My pleasure. Can I help you with something else? Sentence8: Your best bet would be the TR3685 which leaves Cambridge on Friday at 13:00 and gets to London Kings Cross at 13:51. Sentence9: Okay and what day would you like to travel? Sentence10: I'm feeling adventurous and would love to get recommendations about places to visit in the South Sentence11: Perfect. Thank you for your help today. Sentence12: I would like to travel to london kings cross on friday. Question: Who has spoken the sentence 5? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: I don't see anything with that criteria. Perhaps you would like a different cuisine? Sentence2: I have many trains meeting your request. What is your destination and preferred departure and arrival times? Sentence3: Actually, that's all I needed. Thank you for the help! Goodbye. Sentence4: Great! Have a great day. Sentence5: Can you look for chinese food? Sentence6: Thank you for your assistance. Sentence7: I found a chinese restaurant named tang chinese located at Napier Street City Centre would you like to reserve a table? Sentence8: Sorry there is no panasian food in any area. Would like me to find a different restaurant? Sentence9: The arrival time is 17:27. Price is 16.60 pounds. Duration is 88 minutes. Sentence10: Was there anything else I can do for you today? Sentence11: Okay, Booking was successful. The table will be reserved for 15 minutes. Reference number is : MCSWQ2W5 . Is there anything else I can help you with? Sentence12: I have a train TR 2815 leaving cambridge at 15:59 on wednesday and arriving at 17:27 at london liverpool street. Would you like to book this? Sentence13: Can you help me find an expensive Panasian restaurant, please? Sentence14: I also need to train leaving from cambridge on thursday. Sentence15: book a table for 6 people at 14:45 on tuesday. Sentence16: My destination is London Liverpool Street, departing on Wednesday from Cambridge after 14:15. Sentence17: No, could you give me the price, arrival time, and overall travel time, please? Sentence18: Are you sure there isn't any in the centre? Question: Who has spoken the sentence 12? (A) User (B) System
[A]:
Answer: (A) User