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

[EX Q]: Sentence1: yes that works. I also need a taxi to get between the guest house and restaurant. Sentence2: I'd also like the hotel type and internet status, please. Sentence3: found it, de luca cucina and bar is modern european centre of moderate price range. phone number is 01223356666 code,cb21aw and is located on 83 Regent Street Sentence4: Thank you, I want to book a table for 8 people at 11:30 on saturday. Sentence5: No just need the address and do they have free internet? I am also looking for a nice place to eat called the de luca cucina and bar Sentence6: It is a guesthouse, cheap, wifi and parking. Would you like to reserve it? Sentence7: Worth House has internet and parking. Will that work for you? Sentence8: Ok, a black bmw will pick you up in time to arrive for your reservation at de luca cucina and bar. The taxi's number is 07228077167. Anything else? Sentence9: Found it! It is located in the north and it is cheap. Would you like to make a reservation? Sentence10: Thanks. What was the address for Worth House? Sentence11: warkworth terrace is the address, anything else? Sentence12: Thank you, please contact us again if you'd like additional assistance. Have a great day! Sentence13: I'm looking for a hotel named Worth House Sentence14: That is all thanks for your time. Sentence15: Is that a hotel or guesthouse? And, do they have free internet? Sentence16: I was able to book it the reference number is 3EZLDF7Q . Question: Who has spoken the sentence 8? (A) User (B) System
[EX A]: Answer: (A) User

[EX Q]: 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
[EX A]: Answer: (A) User

[EX Q]: Sentence1: Bye, take care Sentence2: There are 4 places to stay in the Centre area two are guesthouses and two are hotels. Do you have a type preference or price range? Sentence3: They both have free wifi and parking. Would you like me to book one for you? Sentence4: No problem, are there any college places? Sentence5: christ's college is in the centre, as are many other college's in fact. Sentence6: I am looking for a moderately priced hotel, that has a 4 star rating. Sentence7: Emmanuel college is free to visit and the postal code is cb23ap. Sentence8: You're welcome, let me know if I can help again. Sentence9: Please pick one, and tell me the entrance fee and post code. Sentence10: Hello, I'm looking for an attraction that is in the type of multiple sports and is located in the centre. Sentence11: I'm afraid we don't have any like that in the center. There's a cheap 4-star guesthouse and an expensive 4-star hotel. Would either of those work for you? Sentence12: You are quite welcome. Will you need a taxi to the hotel? Sentence13: I'm sorry. There is no multiple sports attraction in the center of town. Sentence14: Book it! Need 3 people for 5 nights starting Friday. Thank you. Sentence15: Awesome! Thanks for your help! Sentence16: Goodbye! Have a great stay in Cambridge! Sentence17: I also need a moderate place to stay, with free parking. Sentence18: Booking completed! Look for a black toyota at 22:45. Contact number : 07067597569 Sentence19: Thanks for your help. That's all I need. Sentence20: I booked 3 nights for 5 people at university arms hotel beginning friday . They are located at regent street and the phone number is 01223351241. Sentence21: Does it have free wifi at least? Sentence22: Yes please. I want to leave the attraction no later than 22:45. Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]:
Answer: (B) System