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: Sure, that post code is cb39al. Can I further assist you? Sentence2: I'm interested in visiting colleges while in town, can you please recommend some? Sentence3: I can recommend clare hall and christ's college. You need phone numbers for either one? Sentence4: Okay the TR5009 leaves at 18:40. Sentence5: Yes I also need a train to stansted airport on sunday Sentence6: That sounds great, do I call to book a seat or can you help me? Sentence7: No, thanks. That's all I needed. Sentence8: I'm glad I was able to help you. Thanks for using our service have a nice day. Sentence9: Sure. Where will you be departing from, and what time? Sentence10: Please book for 6 people. Sentence11: I am leaving from Cambridge. I would like to leave sometime after 18:00. Sentence12: I would like the post code for clare hall please. Sentence13: I would be more than happy to help you book! Tickets are 8.08 pounds. How many tickets would you like me to book for your trip? Sentence14: Booking was successful, the fee is 48.48 GBP payable at the station . Reference number is 4ESBHTB0 . Is there anything else I can help you with? Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Booking was successful for the bridge guest house. Your Reference number is : LBEOV690 . Sentence2: Yes please. Which is the cheapest? Sentence3: Thank you. Have a nice day. Sentence4: No. I would like to make a reservation for Wednesday for 3 nights and 8 people. I will also require a reference number. Sentence5: I was unable to book your stay at any of the three hotels. Would you like to change the length of your stay or change the day? Sentence6: There are 2 hotels with a 3 star rating and free parking. Would you like to stay in the centre or south? Sentence7: Sorry, I was mistaken. There are 3 guesthouses matching your request. One each in the south, north, and west. Would you like to book one? Sentence8: Thank you. Have a nice day. Sentence9: Can you please try a 2 day stay. Sentence10: I can only tell you they are all in the moderate price range. Do you have any other preferences? Sentence11: I am looking for a hotel with a 3 star rating and free parking Sentence12: Either is fine. I'd like a guesthouse. Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: I am also looking for a place to dine in the north area that has a cheap price range. Sentence2: I was able to successfully reserve your table for 18:30. Your reference number is A2FWMXJN . Is there anything else I can help you with? Sentence3: Can I get a time you would like to arrive by? Sentence4: I am not particular about what time we arrive provided we leave after 09:30. Choose one for me and give me the arrival time, travel time, and train ID. Sentence5: You're welcome please let me know if there is anything else I can help you with. Sentence6: I have two choices that match, Royal Spice that serves Indian food, and Da Vinci Pizzeria that servers Italian food. Do either of those work? Sentence7: How about at 18:30? Sentence8: Yes I would like Royal Spice, book a table for 8 people at 19:30 on the same day Sentence9: That will be all, thank you for your help. Sentence10: I'm sorry, there aren't any tables available at that time. Would you like to try another timeslot? Sentence11: I would be happy to help you with your request, could you be more specific on where you are departing/arriving? Sentence12: I will be leaving from Broxbourne on my way to Cambridge. Sentence13: Hello, I'm trying to find a train leaving on Friday after 09:30. Sentence14: I have train TR5678 leaving Broxbourne at 09:32 and arriving in Cambridge at 10:32. The travel time is 60 minutes. Anything else I can help with? Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION:
Answer: (B) System