You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

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
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

New input: Sentence1: It doesn't really matter. What's your recommendation? Sentence2: There are 44 attractions in the centre of town. What kind of attraction do you want to visit? Sentence3: The post code is CB21SU. Do you need anything else? Sentence4: Cambridge Contemporary Art, what's their post code? Sentence5: I want to find some good places to go in the centre of town. Sentence6: Thank you for your help! Sentence7: Holy Trinity Church is popular for its architecture. Christ's College finds people touring the campus. Or, Cambridge Contemporary Art is a free museum. Any of those interest you? Sentence8: My pleasure! Have a good day! Question: Who has spoken the sentence 4? (A) User (B) System
Solution:
Answer: (A) User