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: Let's try for saturday, but if that is not available then tuesday would be fine Sentence2: I was able to book you for Saturday. Sentence3: That will be all, thanks again. Sentence4: I would like to leave after 21:30. Sentence5: What day will you be arriving? Sentence6: I found Alexander bed and breakfast . Do you want to make a reservation? Sentence7: Yes bookit for the same group of people 4 nights. Sentence8: thanks can I get a reference number please? Sentence9: Yes, i am looking to book a room at the alexander bed and breakfast. Sentence10: You are welcome enjoy Sentence11: Would you like to leave or arrive by a certain time? Sentence12: Yes, whichever train has seats available for 7 people. Sentence13: I'm looking for a train that goes to Cambridge on Saturday Sentence14: I will be departing from broxbourne. Sentence15: We have 3 options that meet your criteria. All depart within an hour of each other starting at 21:32. Would you like me to book one of them for you? Sentence16: Your booking was successful, the total fee is 100.24 GBP payable at the station. The train departs at 21:32. Your reference# is UZFW2TAQ . Is there anything else? Sentence17: Where will you be departing from? Sentence18: Your reference number is XVE54KKH . Is there anything else I can do for you? Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Maybe you could try again? Sentence2: I am looking for a place to stay in cambridge in the moderate price range with 4 stars Sentence3: I found the restaurant you want. Do you want me to make reservation? Sentence4: I am having a hard time booking this, could I make sure the place you would like is the Pizza Express at Fen Ditton? Sentence5: There are 11 matches. Do you have a preference for hotel types? Sentence6: Yes, for 5 people on Friday around 13:45, please Sentence7: I am not able to book anything right now. Sentence8: Okay....well I'm over here waiting....don't forget the reference number too Sentence9: I will go ahead and book that for you now. Sentence10: Thanks for the room booking. Can you locate a restaurant for me, too? The name is pizza express Fen Ditton. Sentence11: The booking worked this time! The reference number is S31A87TV . Anything else today? Sentence12: No problem. If you need anything else just call us back. Sentence13: Yes it is, but if 13:45 time isn't working then 12:45 would also be acceptable. Sentence14: Great, thanks for your help! Have a good one. Sentence15: You have a room booked at the Warkworth House (ref# TP8X26LA). Can I help you with anything else? Sentence16: No, but it should be in the east. Sentence17: I have 3 guesthouses matching your request. Do you care about parking? Sentence18: Pick one and book me for 5 people lasting three nights starting Friday please. Question: Who has spoken the sentence 15? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Your room has been reserved. Reference number is RQ1GW9PE . Sentence2: Great. I'm also looking for a place to stay. Can you look for a 4 star hotel with free parking? Sentence3: Well the Milton Country Park is free and their address is milton country park, milton. Sentence4: Yes, I'll be coming in on Wednesday with 5 people total. We'll be staying for 5 nights. Sentence5: I found a great 4 star guesthouse on the east side in the moderate price range. It's carolina bed and breakfast. Would you like me to book you a room? Sentence6: There are none in the moderate price range, I have a couple expensive and 1 cheap. Do you have a preference? Sentence7: How about guesthouses? Any matches? Sentence8: I'm wanting to find an attraction to go to in the north part of town. Do you have any suggestions? Sentence9: from the hotel to the attraction please Sentence10: Sure! There are swimmin pools, boat, and a park. What would you like more information on? Sentence11: Can you book it for me and get a reference number ? Sentence12: A blue ford will arrive at Carolina Bed and Breakfast at 22:00 to take you to Milton Country Park. The driver's contact number is 07842440492 Sentence13: I have 3 hotels matching your request. Two are in the west and one center. Do you have a preference in part of town? Sentence14: I only need a taxi. Sentence15: Any of your favorites will do as long as it's in the north. I'll need the address and entrance fee information as well, please. Sentence16: You are welcome. Do you need any information about restaurants? I can help with that, too. Sentence17: Are any of them in the moderate price range? Sentence18: Sorry, can you clarify which is the destination and which is the departure site? I know you want to arrive by 22:00 but at which place? Sentence19: Thanks, i also need a taxi between the two places. I need to get there by 22:00 Sentence20: Great, thanks! You've been a big help. Question: Who has spoken the sentence 2? (A) User (B) System

SOLUTION:
Answer: (A) User