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: Pick any of them, please. Book it for 6 people and 3 nights, starting thursday. Sentence2: I need something with free parking and a 4 star rating. Sentence3: I have 24 guesthouses. Let's narrow it down a bit. Do you have a price range? Sentence4: I am showing 18 colleges. Is there a certain area of town you would like? Sentence5: What is the postcode of Corpus Christi? Sentence6: Booking was successful. Reference number is : 2WPLODLS . is there anything else i can help you with? Sentence7: Not really. Which do you think would be the most interesting to visit? Sentence8: That cuts it down to 16. I can recommend the Acorn guest house, or do you have a pricerange or area of town you want to stay in? Sentence9: I would suggest Christ's college in the city centre or Corpus Christi college in the west. Christ's college is free and Corpus Christi costs 2 pounds? Which do you want? Sentence10: Hello, any interesting colleges in town? Sentence11: Their postcode is cb21rh. Can I assist you with anything else? Sentence12: I am looking for a guesthouse to stay in. Question: Who has spoken the sentence 11? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: How about the Gonville Hotel located in the centre area of town? Sentence2: Between $100-$300 per night. Sentence3: I have several available. What is your price range? Sentence4: Ok, I have several hotels. Any particular location? Sentence5: Location doesn't really matter as long as there's free parking available. Sentence6: What is their postcode? Sentence7: I need a place to stay with free wifi. Sentence8: Their postcode is cb11Iy, address gonville place, phone 0122336661 they have wifi and free parking too. Would you like me to book this for you? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Yes please book it for 8 people and provide the reference number. Sentence2: Ok, what day are you traveling? Sentence3: Great, thank you so much! That will be all for today. Sentence4: Yesm there is a train available, the TR7733, and leaves at 17:50. Would you like me to book this? Sentence5: I would be happy to get that information for you. Can I help you find a restaurant or an attraction? Or would you like assistance with accommodations? Sentence6: Tuesday and I need to leave after 16:45 please. Sentence7: Yes, I'm looking for a college to visit in town. Can you give me some info on what's around? Sentence8: The train is booked for 8 people and the reference number is OPGQ4971 . Do you need any other assistance? Sentence9: I am particularly interested in colleges if you would focus on that type of attraction. I would appreciate it. Sentence10: Are there colleges in the centre of town? Sentence11: You are welcome. Please let us know if you need anything else. Have a great day! Sentence12: Yes, there are 13. I personally recommend corpus christi. Entrance costs 2 pounds. The address is king's parade, postcode is cb21rh, and phone number 01223338000. Sentence13: There are 18 colleges in town. Do you have an area preference? Sentence14: I need help booking a train from cambridge to ely. Question: Who has spoken the sentence 13? (A) User (B) System

SOLUTION:
Answer: (B) System