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: Great I was able to book A and B guest house, the reference is VMWIVZV7 . Sentence2: I would like to book a table at the Italian restaurant for 8 people on Thursday at 14:45. Can I have the reference number for that as well? Sentence3: I'm looking for a place to stay in the moderate price range. It doesn't need to have free parking. Sentence4: Okay you're all set. Your reference number is U37O50HC . Is there anything else? Sentence5: Not a problem, have a great day! Sentence6: I was able to book a blue honda, phone number is 07521143616 Sentence7: It should be on the east side, and have free wifi, no food preferences though. Sentence8: I have 3 results for moderately priced guesthouses on the east side. All have 4 star ratings and free wifi, do you need parking? Sentence9: Yes, I would like to book a taxi from the hotel to the restaurant. Sentence10: Great thank you for all your help Sentence11: Thank you for your help in booking the hotel for me! Sentence12: I do not need free parking. Can you book one of them for Thursday? I have 8 people and we need to stay for 2 nights. Sentence13: I also also need a place to eat in the moderate price range in the same area as the hotel Sentence14: There are quite a number of hotels that fit your description. Any preferences in location or food served? Sentence15: You are welcome. Goodbye! Sentence16: Sure I have two Indian restaurants and one Italian restaurant pizza hut fen ditton matching your price and area preference. Do any sound good to you? Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Can you verify that the hospital has a transplant high dependency unit? Sentence2: Can you help me find a hospital nearby? Sentence3: Yes, it does. Here is the unit's phone number: 01223216811. Do you need any other information? Sentence4: I would like the address and phone number please. Sentence5: No that is everything. Thank You Sentence6: Sure, the phone number is 01223245151 and the address is Hills Rd, Cambridge. Sentence7: The nearest hospital to you is at Hills Rd, Cambridge. would you like their phone number? Sentence8: Alright sounds good. I hope everything is okay. Question: Who has spoken the sentence 4? (A) User (B) System

SOLUTION: Answer: (A) User

PROBLEM: Sentence1: Are there any vietnamese themed restaurants in the west side of town? Sentence2: Yes, Thanh Binh. Do you want a reservation there? Sentence3: no thanks. i have all the info i need. have a good day. bye. Sentence4: the TR6898 train has a travel time of 17 minutes and arrives at cambridge at 15:52. Would you like to book that train or get more information? Sentence5: What is your departure station please? Sentence6: I want a car to get me to Cambridge, arriving by 14:00. Sentence7: Sure! What is your departure area and your destination? Sentence8: Please ignore my last post, I was distracted. I need to leave Ely and get to Cambridge by 16:00. Sentence9: The booking was successful. The table will be reserved for 15 minutes. Your reference number is : EP1XT4JY . Is there anything else I can do to assist you? Sentence10: What day are you looking to book train on? Sentence11: I'll be departing Monday. Could you tell me the travel time of the train? Sentence12: Yes. I also need to book a train. Sentence13: You are welcome. Enjoy your visit. Sentence14: Sure, I'll need a table for 3 at 19:45 on Monday please. Question: Who has spoken the sentence 13? (A) User (B) System

SOLUTION:
Answer: (B) System