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

Sentence1: Frankie and Bennys serves italian food in the expensive price range, and their postcode is cb17dy. Would you like assistance in making a reservation? Sentence2: Departure time doesn't matter, I just need to arrive at the stansted airport by 21:30 on Thursday, and I need to depart from Cambridge. Sentence3: When are you leaving? Sentence4: I don't need tickets at the moment, but I do need the price and train ID for that 19:40 departure, please. Sentence5: I need a train that leaves Cambridge on Thursday. Sentence6: There are 202 trains leaving Cambridge on Thursday. Would you like to narrow your search by destination and time? Sentence7: Can you tell me the postcode, food type, and the price range? Sentence8: The train id for that is TR9030 and the price is 10.10 pounds. Is there anything else you'd like help with today? Sentence9: I am going to the stansted airport and I need to arrive by 21:30. Sentence10: Yes, the 19:40 train will arrive at 20:08. How many tickets would you like? Sentence11: I'm also looking for a particular restaurant, it's called Frankie and Benny's. Sentence12: Thank you for contacting the Cambridge TownInfo centre. We're here any time you need to get around Cambridge! Sentence13: No, that's all I needed. Thank you. Sentence14: Can I please have one at 19:40. I will get there by 21:30 correct? Sentence15: I was able to find it, what information would you like on it? Sentence16: I have 16 train departures fitting your preferences. They leave every :40 of the hour starting at 5:40 to 20:40, would you like me to book one of these? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User

Sentence1: I am hoping you can help me with my planning. I am trying to find information on the trains. Sentence2: I would like to arrive by 13:15. Sentence3: Thank you that is all I needed. Sentence4: itshould be in the centre Sentence5: No. Can you help me find a very cheap, not shabby hotel that has free parking? Sentence6: Your booking has been changed. Your new reference number is FVTMM086 . Sentence7: I can definitely help you with that. Can you give me more information, like your departure and destination preferences? Sentence8: I have a lot of great choices to offer you. Do you have a preference to what part of Cambridge you'd like to stay in? Sentence9: Which one of them has free wifi? Sentence10: I will be departing from Stansted Airport to go to Cambridge on Wednesday. Sentence11: You're welcome, have a great day! Sentence12: There are two guesthouses: Alexander Bed and Breakfast, and El Shaddai. Would you like to stay in one of those guesthouses? Sentence13: I am getting the information up now, do you have a specific arrival or departure time? Sentence14: book for 2 people for 2 nights from wednesday Sentence15: Sorry, can you actually book it for 3 people for 2 nights, please? Sentence16: Both facilities do. Sentence17: TR6386 departs at 12:24 and arrives by 12:52. Would you like a ticket? Sentence18: I made your reservation for 2 people for 2 nights starting Wednesday at the Alexander Bed & Breakfast. Your reference number is 8JX02F2T . Is there anything else I can do? Question: Who has spoken the sentence 13? (A) User (B) System
Answer: (B) System

Sentence1: TR5331 leaves Kings Lynn at 15:11 on Friday and arrives in Cambridge at 15:58. Will this train work for you? Sentence2: Yes, I need a train departing from kings lynn. Sentence3: There are several listings. Do you have a food preference? Sentence4: Okay, have a wonderful visit in cambridge! Sentence5: I'm leaving from kings lynn on sunday after 14:30 and arrive at cambridge. Sentence6: No. The train should leave on Sunday as I said. Sentence7: What time will you be departing and where will you be departing from? Sentence8: I have booked your seats,here is the information:Booking was successful, the total fee is 54.88 GBP payable at the station . Reference number is : 5C3SFLV2 . Sentence9: Booking was successful. The table will be reserved for 15 minutes. Reference number is : 9ATX95AG . Sentence10: No. Could you pick something you like for me? Sentence11: Yes please. I need 7 seats. Sentence12: I also need a cheap place to eat in the center of town. Sentence13: That is perfect. That is all I need today. Sentence14: Can you get me a table for 7? My group will probably head there at 17:00 on the same day. Sentence15: I would recommend the river bar steakhouse and grill, a modern european joint at Quayside Off Bridge Street. Would you like to make a reservation? Sentence16: I have the TR2965 leaving kings lynn sunday at 15:11. Would you like me to book that for you? Question: Who has spoken the sentence 9? (A) User (B) System

Answer: (B) System