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

[Q]: Sentence1: Yes, what type of attraction is Cherry Hinton Water Play? Sentence2: Please book it and send me the confirmation code. Sentence3: Again thank you and have a great day. Sentence4: Thanks I'm also looking for a train that leaves on Thursday. Sentence5: Just one seat. Sentence6: OK, what are your departure and arrival stations, and what time do you want to travel? Sentence7: Before i book it, could you confirm the number of seats you need? Sentence8: You're welcome! Is there anything else I can help you with? Sentence9: It is a park. Sentence10: Excellent, I can't wait to visit it! Thank you. Sentence11: I am looking for information about the the Cherry Hinton Water Play Sentence12: excellent, have a great day! Sentence13: I'd like to go to Cambridge via Broxbourne. I'd like to leave on Thursday and arrive no later than 12:00. Sentence14: That is a free park on the east side of town. They are located at Cherry Hinton Hall on Cherry Hinton Road. Their phone number is 01223446100. Sentence15: I have on that arrives at 11:32. Would you like me to book that for you? Sentence16: Perfect thanks for the help thats everything I need! Sentence17: Well I glad i can help enjoy your stay ! Sentence18: Your booking was successful! The reference number is 698RE4W1 . The total fee of 17.89 is payable at the station. Question: Who has spoken the sentence 17? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Can I get a taxi from Magdalene to Hakka, please? I need to make sure I get there for that reservation. Sentence2: May I suggest Hakka, a very nice Chinese Restaurant in the north part of town. Shall I provide you with more information? Sentence3: The post code is cb41jy. Can I help with anything else? Sentence4: You're welcome! Have a great day! Sentence5: You're welcome is there anything else I can help you with? Sentence6: What is their postcode? Sentence7: Your taxi is a blue volkswagen . The contact number is 07121936050 Sentence8: Yes, get me some more information on magdalene college please Sentence9: No but can I make a booking for 8 people at 18:30 on sunday. Sentence10: We have 9 expensive Chinese restaurants across town. Do you prefer a specfic part of town? Sentence11: Yes, I do. I would like it to be in the north. Sentence12: Thank you so much for your help Sentence13: I'm looking for a high scale chinese restaurant. Sentence14: I have made those reservations your reference number is 61KTQSEO . Sentence15: Great! Thanks for all your help today! Goodbye Sentence16: Yes their address is Magdalene Street and their telephone number is 01223332138. Question: Who has spoken the sentence 9? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: The only restaurant that fits that criteria is the missing sock. Can I try a different reservation time for you? Sentence2: Of course, would a guesthouse be OK? Sentence3: carolina bed and breakfast is in the east part of town. How many people should i book for Sentence4: I do apologize, but that is the only international restaurant in the area. Perhaps pick another cuisine type? Sentence5: Yes, in the east part of town The Missing Sock serves international food and their prices are quite low. Shall I book you a table? Sentence6: Can you help me find a german restaurant in the east please? Sentence7: Unfortunately, that time is also unavailable. Sentence8: Can you find me something cheap? Sentence9: There is one restaurant for international on the east side the missing sock, I attempted booking but it was unsuccessful. Can we try another time for booking? Sentence10: That restaurant will be fine, lets book it. Sentence11: Okay, but given the mistake regarding the area of town, could you check again for a table for 1 at a cheap international restaurant on the east side? Sentence12: The Italian restaurant is called La Margherita. What day would you like a reservation? Sentence13: You know what, I've changed my mind. I'd prefer international to Italian. Are there any like that in the east part of town? Sentence14: I guess a reservation at 15:30 would be alright. Do you have any? Sentence15: I've found two in that area that fit that criteria. An Italian restaurant and a Vietnamese restaurant. Which of those would you prefer? Sentence16: I need a restaurant serving International Food in the East Thursday at 15:15 for one person. Can you do that for me? Sentence17: You stated earlier there was no German restaurant in the west, but I was looking for one in the east. Sentence18: That too was unsuccessful. Maybe you'd like to try for another day? Sentence19: My apologies about the miscommunication. There is no German restaurant in the east area. Sentence20: Perfect, your booking was successful, the reference number is T5BJ4XD0 . Is there anything else that I can help you with? Sentence21: I am sorry but that time is not available to book. Would you like to try another time? Sentence22: Is there a way you can contact the restaurant and try the booking again for 15:15 on Thursday for 1 person? Sentence23: Can you try again to book The Missing Sock for 1 person at 15:15? Sentence24: That sounds good. Could I get a reservation on thursday at 15:15 for 1 with a reference number? Also looking for a place to stay in the area with free parking Sentence25: I am sorry, that still does not work, any other time you could do? Sentence26: I did not find any german restaurant in the west. would you like to change location/food type? Sentence27: I prefer the Italian but will go to the Vietnamese if the booking does not work. Sentence28: Yes, as long as it is in the same general area and price range as The Missing Sock restaurant. Sentence29: Thanks! I need a hotel on the east side, please. Sentence30: Perhaps another restaurant in the east that serves International food and can be booked at that time? Question: Who has spoken the sentence 20? (A) User (B) System
[A]:
Answer: (A) User