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 need to find a hospital nearby that has a hepatobillary and gastrointestinal surgery referral center Sentence2: No, that's it. Thanks! Sentence3: No, I just need the postcode. Sentence4: You're very welcome. Have a great day! Sentence5: Certainly. The postcode is CB20QQ. Anything else I can help you with today? Sentence6: Addenbrookes Hospital located at Hills Rd, Cambridge has that department. Would you like the phone number to that direct department? Question: Who has spoken the sentence 5? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: Taj Tandoori is an expensive Indian restaurant in the South. Would you like more information on them? Sentence2: I'm looking for an expensive restaurant in the south part of town Sentence3: Thanks for your call. Goodbye! Sentence4: Thank you goodbye. Sentence5: May I have their address and phone number? Sentence6: chiquito restaurant bar is located at 2G Cambridge leisure park cherry hinton road cherry hinton. Its phone number is 01223400170. Would you like anything else? Sentence7: Yes. chiquito restaurant bar serves mexican food in the expensive price range and is located in the south part of town. Sentence8: Is there anything else? Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION: Answer: (B) System

PROBLEM: Sentence1: There are two cheap guesthouses located in the centre. My recommendation would be Alexander Bed and Breakfast. Sentence2: Your booking was successful at the Alexander bed and breakfast. The reference number is F9VVA2GL . Sentence3: Yes, there are no accommodations available that fit that criteria. Would you like to choose something else? Sentence4: Hello, we're planning on a trip to Cambridge and would like lodging info. Can you tell us if there is a hotel in the economical range near the centre? Sentence5: Really? Not even a guest house? Sentence6: Unfortunately, there are no economical hotels in the centre of Cambridge. Would you like to look in a different area? Sentence7: Thank, you goodbye Sentence8: Welcome , have a lovely day too. Sentence9: Sounds great! Can you book it for 5 people and 4 nights starting from monday? Sentence10: I'm looking for a cheap hotel in the centre. Question: Who has spoken the sentence 7? (A) User (B) System

SOLUTION:
Answer: (B) System