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

Sentence1: I can get you a ticket on the tr8495 it will get you there by 10:55, or is that too early? Sentence2: I'm sorry I changed my mind. I just need the price per ticket please. Sentence3: I'll be going from Cambridge to Norwich. Sentence4: Yes. Please reserve for 5 people on Monday at 14:00. Sentence5: Have a great day and enjoy your time in cambridge. Sentence6: No that sounds good,please book it for me Sentence7: I also need a moderate restaurant in the town centre that serves European food. Sentence8: The price is 17.60 pounds sterling. Can I help with anything else? Sentence9: How many tickets will you be needing? Sentence10: Booked. The table will be reserved for 15 minutes. Reference number: XLZVMYRL . Sentence11: I need to take a train to here. I want to arrive by monday at 17:15. Sentence12: Great. I can't wait. Thanks! Goodbye! Sentence13: The riverside brasserie serves modern european food. Would you like to make a reservation today? Sentence14: Okay, there are plenty of options. Where are you headed? Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: Ok great! I was able to get you booked, your reference number is N4TJE8VR . Is there anything else that I can help you with? Sentence2: Yes please. There are 5 of us total and we need 4 nights in a row. Thank you. Sentence3: May I get your departure and destination information please? Sentence4: Can you verify the cost for train TR6954 for me? Sentence5: There don't seem to be any 5-star lodgings in the city. Would you like to try searching for 4 stars instead? Sentence6: I am looking for a train arriving by 9:45 on Tuesday. Sentence7: I'd like to start my stay on Tuesday, please. Sentence8: Your booking reference is NT43PSC0 . Now, if you let me know what type of hotel you are interested in, I can help you with that as well. Sentence9: TR6954 departs from Leicester at 07:09 and arrives in Cambridge at 08:54. Would you like to book this train? Sentence10: What day would like to start your stay? Sentence11: Maybe... how much does it cost? Sentence12: Yes, 4 stars would be fine. Sentence13: Nope, that'll take care of everything, thanks! Sentence14: I am going from Cambridge to Leicester. Sentence15: I'm sorry, we have that mixed up. I need to depart from leicester and go to cambridge. Do you have a train that arrives by 09:45 in cambridge? Sentence16: The acorn guest house is a 4 star hotel located in the north side. Would you like to make reservations? Sentence17: You're welcome. Have a great stay! Sentence18: TR2863 departs from Cambridge at 07:21 and arrive in Leicester by 09:06. Would you like to book this train? Sentence19: Yes I would like help with booking the train and I will also need to book a hotel. Sentence20: It costs 37.80 pounds per ticket. Sentence21: The cost for this particular train is 37.80 pounds per ticket. Would you like assistance booking tickets for this train? Sentence22: Can you help me find a 5-star room somewhere that offers free parking and wifi? Question: Who has spoken the sentence 17? (A) User (B) System
Answer: (B) System

Sentence1: What about British food? Sentence2: The booking was successful. Your table will be reserved for 15 minutes. Your reference number is 6S09L48Q . Can I help you with anything else? Sentence3: Yes, please. I would like it to be for 4 people at 14:15 on Saturday. Sentence4: No. that is all for now. Sentence5: Can I get their postcode please? I also am looking for a good restaurant in town. Sentence6: Can you let me know the type of car? Sentence7: I also need a taxi between the two locations and need to get to the restaurant by 14:15 Sentence8: Fitzbillies is a great British restaurant in the centre of town. Would you like me to reserve a table for you? Sentence9: Wonderful, glad I could be of assistance. Have a great day! Sentence10: What kind of cool attractions to we have in town? Maybe in the water. Sentence11: The abbey pool and astroturf pitch is located in the East at pool way, whitehill road, off newmarket road. Their phone number is 01223902088. Would you like to know anything else? Sentence12: I am actually looking for a boat attraction in the north, not a swimming pool. Sentence13: Their postcode is cb43ax. Can I help you with anything else? Sentence14: It'll be a white tesla. Is there anything else I can help you with? Sentence15: Sorry, no matches. Is there another food you want to try? Sentence16: I have 4 swimming pools in town if you are interested in that? I have 2 in the north, 1 in the east, and 1 in the centre. Sentence17: I would like to the information for the one east. Sentence18: There are 5 British restaurants that meet your needs. Would you prefer the centre, west, or east part of town? Sentence19: riverboat georgina is in the north. do you want their information? Sentence20: Anywhere that you recommend will be great. Sentence21: Yes I would like to find a restaurant that serves German food that is expensive. Sentence22: I've booked a taxi for you. You should arrive at the restaurant by 14:15. The contact number is 07165032687. How else can I help you today? Question: Who has spoken the sentence 19? (A) User (B) System

Answer: (B) System