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

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Yes, in the South, I am also looking for Romanian food. Sentence2: Sorry I don't have anything for that either. Sentence3: Can you try chinese? Sentence4: What is the address for the museum? Sentence5: You are booked at Nando's, a cheap portuguese restaurant in the south. Your reference number is ZS1PDFZA . Sentence6: Sorry I don't have anything for that either. Sentence7: Same area and price, but portuguese, anything for that? Sentence8: Does location matter? Sentence9: You choose as long as it is cheap. Could you book a table for 7 people at 15:45 on Wednesday? Sentence10: I found only the Byard Art musuem in the south. There's no entry fee. Phone number, 01223464646. Sentence11: You're welcome, let me know if I can assist with anything else. Sentence12: I need a place to eat that is cheap. Sentence13: There are no restaurants that meet what you're looking for. Is there anything else you'd like to try? Sentence14: Great! Thanks. Have a good night. Bye. Sentence15: it is in the north address is 14 king's parade and free admittance Sentence16: Are there any museums close to restaurant? Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Acorn Guest House is located at 154 Chesterton Road. Sentence2: How many stars does the Acorn Guest House have? Sentence3: No, unfortunately there are no guest houses that offer free parking but do not offer free internet. Sentence4: Is there any other guesthouses that don't have internet included? Sentence5: Okay, what about one that does have internet? Sentence6: I am also looking for a train that leaves after 14:15. Sentence7: What is the address of the Acorn? Sentence8: I think your best bet is Acorn Guest House. They fulfill your need for free parking and are in the north. Sentence9: Sure thing, Reference number is : A4C2KF23 . Anything else I can help you with? Sentence10: I need a guesthouse, free parking included. Sentence11: ok, the acorn guesthouse is a great place. Located in the north and is moderately priced. They offer free parking and internet. Sentence12: The Acorn Guest House is rated 4 stars. Sentence13: Could you please book that train for 5 people and give me the reference number. Sentence14: It was a pleasure to assist you. Thanks for using our service. Have a great day. Goodbye. Sentence15: That will be all, thank you. Sentence16: TR2420 train leaves at 15:00, may I book this for you? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION:
Answer: (A) User