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: I'll be leaving from Leicester and want to go to Cambridge. Sentence2: Booking was successful, reference number is YN5MH1ZN . Anything else I can help you with? Sentence3: Where are you departing from and what is your destination? Sentence4: I need a hotel in the north that has free parking. Sentence5: There are 11 different hotels. To help narrow it down, can you tell me if there is a price range you prefer? Sentence6: All right. I need a booking for six, please, and the reference number. Sentence7: Yes it is. Sentence8: There are 91 trains leaving Leicaster to Cambridge after the specified time. How does Friday 11:09 sound? Sentence9: No thank you that will be all. Thank you for your help in booking my trip and stay! Sentence10: How about the Acorn guest house on 154 Chesteron Road? It's a moderate price range guesthouse that is rated 4 stars with free parking and wifi. Sentence11: Perfect. I'd like to book a 5 night stay for the six of us. Sentence12: Great. Is this hotel stay also starting on Friday? Sentence13: No problem! You have a wonderful day! Sentence14: I'm looking for a train leaving after 10:30. Sentence15: No not really, I would prefer a guesthouse type of hotel with free wifi though. Sentence16: I was able to book the train for you for 6 people. The reference number is 7QAMUGHQ . Do you need anything else? Question: Who has spoken the sentence 15? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Thanh binh is a nice restaurant that serves Vietnamese food and is in the cheap price range. Sentence2: That sounds great! May I have their phone number please? Sentence3: Thank you for using the Cambridge restaurant system, please call again. Sentence4: Okay, thank you for your help! Sentence5: How about vietnamese food, please? Sentence6: I am looking for a restaurant that serves Malaysian food and is in the cheap price range. Sentence7: thanh binh's phone number is 01223 362456 Sentence8: No matches found for cheap Malaysian food. Would you like something else? Question: Who has spoken the sentence 1? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: You're all set, your reference number for the booking is UFVH6K6Y . Sentence2: What is your day of travel and your preferred arrival time? Sentence3: The guesthouse will be ok, as long as it's rating is a star of 4. Sentence4: No, I need a hotel, not a guesthouse. Sentence5: The only hotel in the area is a guesthouse called, a and b guest house. They are 4 stars. Sentence6: Yes, indeed, the A and B guesthouse does have a 4 star rating. Would you like a booking? Sentence7: That would be great. I am also looking for a hotel. I would like to stay in the east side of town, and I do not need parking. Sentence8: You're welcome. Have a great day too! Sentence9: I'm leaving from Stevenage and I'll need to leave sometime after 21:15 if possible. Sentence10: Train TR3190 will depart at 21:54, would you like me to book that for you? Sentence11: I need a train to cambridge Sentence12: Thanks, that's all I need. Have a nice day. Sentence13: I am sorry but there are no hotels in that area. a and b guest house has 4 stars. Would you like to give it a try? Sentence14: Can I book 4 nights for 6 people on that same Wednesday? Sentence15: I'm working at leave on Wednesday after 21:15 Sentence16: Where will you be leaving from? Question: Who has spoken the sentence 9? (A) User (B) System

SOLUTION:
Answer: (B) System