You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Let me give you an 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
The answer to this example can be: Answer: (A) User
Here is why: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

OK. solve this:
Sentence1: Was there anything else I could assist you with today? Sentence2: Sure. I booked you into the Cambridge Chop House on Thursday at 12:30. Your reference number is 8NI5A15M . Sentence3: I don't care what cuisine. I would like a table for 1 at 12:30 on Thursday. I will need a reference number also. Sentence4: There are 33 to choose from. Any type of cuisine you'd prefer? Sentence5: Okay, wonderful. Thank you for your help. Sentence6: I am looking for an expensive restaurant in the centre Sentence7: Thank you for booking with us today. Enjoy your reservation! Sentence8: No, you were extremely helpful. Thank you. Goodbye. Question: Who has spoken the sentence 3? (A) User (B) System
Answer:
Answer: (B) System