Teacher: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Solution: Answer: (A) User
Reason: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Now, solve this instance: Sentence1: address, phone number, and postcode, please Sentence2: Then could you recommend a Chinese restaurant? Sentence3: I need an east restaurant. I want to try some Canapes food. Sentence4: enjoy your meal. Sentence5: Yu Garden is a Chinese restaurant in the east part of town. Sentence6: I'm sorry, but there are no restaurants serving canapes food in the east part of town. Sentence7: No, thank you, goodbye. Sentence8: Yu Garden is located at 529 Newmarket Road Fen Ditton and their number is 01223 248882. Also, their postcode is C.B 5, 8 P.A. Is there anything else I can help you with? Sentence9: Goodbye. Sentence10: Thank you. Question: Who has spoken the sentence 5? (A) User (B) System
Student:
Answer: (B) System