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

[Q]: Sentence1: Yes, please provide a suggestion. Sentence2: Can you find me a good restaurant in the city centre? Sentence3: Okay, how about Eraina that's on Free School Lane City? Sentence4: Sounds great. Would you book me a table for 8, for Monday at 19:00? Sentence5: There are 11 museums is that area. The great thing is they are all free. Do you want additional information on any of them? Sentence6: Thank you so much for all your help. Sentence7: They are all located in the centre the same as the restaurant. Would you like me to recommend one? Sentence8: Are there any entertainment venues near the restaurant? Sentence9: Your table is booked! Reference #: GV2YF6H5 . The table will be reserved for 15 minutes. Can I assist you with anything else today? Sentence10: You are welcome. Enjoy your time in Cambridge. Goodbye. Sentence11: What area are they in? Sentence12: The fitzwilliam museum has amazing art and sculpture. The address is trumpington street and the phone number is 01223332900. Do you want more information? Sentence13: Your red toyota has been booked and its contact number is 07932820731. Sentence14: there are quite a number. what is your price range? Sentence15: The attraction should be in the same area as the restaurant and should be in the type of entertainment. A museum Sentence16: I will also need a taxi from the attraction to my dinning. Sentence17: I don't really have one but would like to try a European restaurant. Sentence18: There are 44 options available. Is there anything particular you are interested in ? Question: Who has spoken the sentence 15? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: Graffiti sounds good. I actually need that reservation for 5 people at 20:00 on Wednesday. Can I have the reference number for that? Sentence2: There are two trains that would work. One arrives at 07:07 and the other arrives at 01:07. Which one would you prefer? Sentence3: I would recommend Graffiti. It is a bit expensive, so if you want something moderately price there is also Saint Johns Chop House. Sentence4: Great, thanks! That's all I needed right now! Sentence5: Alright, I've booked a train for your group, the reference number is AOIMGBHK, and there will be an 83 GBP fee at the station. Sentence6: What time would you like these reservations? Sentence7: I need to find a British restaurant in West Cambridge. Sentence8: i can definitely do that, how many tickets would you like? Sentence9: No, can you recommend a favorite? Sentence10: I would also like a train departing from london liverpool street and arriving in Cambridge at 09:00 on the same day. Sentence11: Please book 2 tables for 8 people on friday also i need train tickets for 8 people. Sentence12: There are multiple options for you. To narrow them down what price range do you have in mind? Sentence13: Can you book the train that arrives at 07:07 that one would work great. I need the reference number as well. Sentence14: it's for the same group of people Sentence15: Booking was successful. The table will be reserved for 15 minutes. Reference number is : YYPPDY56 . anything else i could help you with? Sentence16: You're welcome. Have a great day. Question: Who has spoken the sentence 11? (A) User (B) System
[A]: Answer: (B) System


[Q]: Sentence1: no problem, its phone number is 01223 351707 and address is 20 Milton Road Chesterton. Sentence2: thank you, goodbye. Sentence3: Thank you. Good Bye. Sentence4: I'm not interested in that choise. Is there anything else within those categories? Sentence5: I would like the phone number and address of da vinci pizzeria Sentence6: I am looking for a cheap restaurant that is in the north part of town. Sentence7: how about da vinci pizzeria? a cheap italian place in the north ? Sentence8: Royal Spice is an Indian restaurant in the north part of town. It is in the cheap price range. Question: Who has spoken the sentence 7? (A) User (B) System
[A]:
Answer: (B) System