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

Sentence1: I meed a moderately priced place to stay. Sentence2: There are 3 guesthouses that meet those requirements I recommend warkworth house. Would you like me to book it for you? Sentence3: I am also looking for a train. Sentence4: I have a train that arrives in cambridge by 18:07. It would be helpful to know your destination so I can serve you better. Sentence5: The train should leave from bishops stortford and go to cambridge and arrive by 19:30. Sentence6: I'll be happy to help you with that. What day would you like to travel and where would you like to depart from? Sentence7: I would like to stay in the east. It should have a 4 stars and I would also like free wifi please. Sentence8: Booking was successful. Reference number is : FGTT1OBZ . Is there anything else I can help you with today? Sentence9: thank you i think you should prepare before departure thank you Sentence10: I have found a list of hotels with a moderate price range, what area, type, star of the hotel would you like? Sentence11: I need to leave from Bishops Stortford the same day I arrive at the hotel. I need to arrive close to 19:30. Sentence12: Yes, please! 5 of us will be staying for 3 nights, and we're arriving on Friday. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Booked! You leave at 13:17, your reference number is 3WICPFQP, you will pay 141.6 at the station. Sentence2: I am looking to book a train. Sentence3: Could you tell me your location, which area of town or what business you are departing from? Sentence4: Certainly. May I ask where you want to depart from? Sentence5: I need to depart from London Kings Cross and go to Cambridge. Sentence6: We are leaving London Kings Cross and need to do so after 12:45 on Friday for 6 people and can I get the reference number for the booking? Sentence7: Okay thank you. That is all I need. Sentence8: Okay thank you for calling. Sentence9: I would like to leave from the closest station to my location. Sentence10: To clarify, are you looking for a train to Cambridge? All Friday trains from London Kings Cross go to Cambridge. Question: Who has spoken the sentence 8? (A) User (B) System
Answer: (A) User

Sentence1: I'd like a recommendation that is able to book a table for 5 people at 14:45 on Friday. Sentence2: Alright, I booked you a table for 5 on Friday at 14:45 at the Kohinoor. Your reference number is 20OK4WP8 . Can I help you with anything else? Sentence3: I'll need to book a taxi from the Cambridge Museum of Technology to the Kohinoor, arriving by 14:45. Sentence4: I'm looking for a place to dine that's in the cheap price range and that serves Indian food. Sentence5: The phone number is 01223368650 and the post code is cb58ld. Can I help you with anything else? Sentence6: Would you like a recommendation, or do you want to specify an area? Sentence7: That sounds great! Can you give me their postcode and phone number? Sentence8: No, you have been very helpful. Thanks so much and have a nice day. Bye. Sentence9: How about the Cambridge Museum of Technology at The Old Pumping Station on Cheddars Lane? Sentence10: I've booked your taxi. It will be a grey skoda and the contact no. is 07998309857. Is there anything else that I can help you with? Sentence11: Thanks, I'd also like to find an attraction in the east, please. Sentence12: Thank you for choosing Help Desk. Good bye. Question: Who has spoken the sentence 10? (A) User (B) System

Answer: (A) User