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: Sure! Hughes Hall is an excellent free college attraction. Would you like more information? Sentence2: Yu Garden is an expensive Chinese restaurant located on the east side of town. Would you like the address for this one? Sentence3: Yes I would like the address and the postcode please. Sentence4: Great, can I get a taxi from Hughes Hall at 15:30 going to yu garden please. Sentence5: Nope. Pick the place with the most stars, and give me the address and postcode. Sentence6: I have 9 expensive chinese restaurants. Is there a certain area of town you would like? Sentence7: Not right now. Could you please pick an attraction in the centre of town and give me the name and type of attraction? Sentence8: yes I will order that for you. Sentence9: I am looking for a chinese restaurant. I want a place that is expensive and classy. Sentence10: The address for yu garden is 529 Newmarket Road Fen Ditton, postcode cb58pa. Would you like me to book this restaurant for you? Question: Who has spoken the sentence 5? (A) User (B) System
Solution:
Answer: (B) System