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

[EX Q]: Sentence1: I have train TR4494 that will be departing at 09:59 and arriving by 11:27. Would this interest you? Sentence2: Can you tell me where you are departing from please and the number of tickets you will need? Sentence3: Are you looking for an attraction in the Centre of town as well? Sentence4: what kind of attraction would you like to visit? Sentence5: I need to arrive by 12:15 please. Sentence6: Yes. Can you try 16:15? Sentence7: Yes, attractions in the Centre of town would be great. Sentence8: Yes, Bedouin is in the expensive price range and is in the centre of town. Sentence9: Do you prefer a certain type of cuisine? Sentence10: I'll be leaving Cambridge and need 7 tickets. Sentence11: Hi. I'll be traveling to there and can't wait to try the restaurants there. Could you help me find a place? Sentence12: I have gotten you 7 tickets on train TR4494, reference number ENXXH8XH and the total fee is 116.2 GBP. Is there anything else I can help you with? Sentence13: Yes, I would like to make a booking please for 7 people. Sentence14: My apologies. The table you requested is not available at 17:15 on Monday night. Would you like to try a different day or time? Sentence15: Your restaurant and travel accommodations have been booked. Reference number KCIWXESP and HTEPD4LJ respectively. Is there anything else I can help you with today? Sentence16: That would be it for today. Thank you Sentence17: Alright, there are 10 trains traveling to London Liverpool Street. Is there a particular departure or arrival time you are wanting? Sentence18: No you have been most kind. Thank you for doing the bookings. Are there any attractions in the same area? Sentence19: Yes, I would like to try South African cuisine. Sentence20: Is it in the expensive price range? Sentence21: I have decided I don't really need an attraction. I think that will be all today. Sentence22: I have a restaurant called Bedouin located downtown an 100 Mill Road, if that interests you. Sentence23: On what day would you like to book? Sentence24: We will be there monday night. Sentence25: Yes, go ahead and book that restaurant for 7 people at 17:15, please. Sentence26: I am also needing train tickets for Tuesday going to London Liverpool Street. Sentence27: I was able to make reservation for you on Monday at 16:15 for 7 people. Your reference number is KCIWXESP . Is there anything else I can do for you? Sentence28: I hope you enjoy your stay in Cambridge. Goodbye! Question: Who has spoken the sentence 10? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Thank You good bye Sentence2: Yes. Kymmoy is an expensive restaurant serving asian oriental food in the centre part of town. Sentence3: Thank you. May I have their phone number? Sentence4: Their number is 01223 311911. Will that be all today? Sentence5: Yes, thank you. Sentence6: There is not matching places that fits your request. Can i help you with something else? Sentence7: Are there any Asian Oriental restaurants in that price range? Sentence8: I'd like to find an expensive restaurant that serves venetian food. Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: I am looking for a moderately priced restaurant that serves indian food. Sentence2: What is the travel time? Sentence3: Booking was successful. The table will be reserved for 15 minutes. Your Reference number is Q9MQW1Q4 . Sentence4: How many tickets would you like? Sentence5: How about a chinese restaurant in the centre? Sentence6: I can help you with that! What is your destination, and what time are you traveling? Sentence7: There are 4 restaurants to choose from. Do you have a part of town you prefer? Sentence8: Yes, I need a table for 5 people on Tuesday at 12:30. Could I have the reference number as well for that? Sentence9: Actually, I think I'll hold off on that ticket, I don't need it booked but thanks. That's all I need today. Sentence10: The travel time is 60 minutes. Would you like to book a ticket? Sentence11: Ok, I have 3 restaurants that meet your requests, would you like me to book one of them for you? Sentence12: It was a pleasure working with you today. Contact us again if you need any more assistance. Have a great day. Sentence13: I'm sorry, there are no restaurants that match all of your criteria. Would you like to look for a different type of cuisine, area, or price range? Sentence14: I would also like a train on Wednesday, departing from Cambridge Sentence15: Yes, I'd like the restaurant to be in the centre. Sentence16: I want to go broxbourne and I'd like to arrive by 15:30. Sentence17: I have TR5164 departing at 14:01 and arriving in Broxbourne at 15:01, the cost is 17.90 pounds. Would this work for you? Sentence18: Yes that would be great. Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]:
Answer: (A) User