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: The postcode is cb30nd. Would you like to book a room now? Sentence2: What is the star rating and is free parking available? Sentence3: Yes can you please help with that? Sentence4: Can you give me the postcode? Sentence5: Absolutely. How many people, what day are you arriving, and how many nights will you be staying? Sentence6: enjoy your stay! Sentence7: It's 4 stars and has free parking. Would you like a room? Sentence8: The TR8600 Departs Norwich at 18:16, and it takes 79 minutes to get to Cambridge. The fare is 14.08 GBP per ticket. Is there anythig else you want to know? Sentence9: I need a place to stay in the west. Sentence10: Finches Bed and Breakfast is within your chosen price range and it is located at 144 thornton road. Sentence11: I would like to find a cheap guesthouse. Sentence12: How long is the travel time, departure time and what is the price? Sentence13: No actually I need to find a train to Cambridge from Norwich on Saturday arriving by 19:45. Sentence14: Okay the TR8600 arrives by 19:35. Would you like tickets? Sentence15: We have several places to stay that you may like in the West. Do you have a specific price range or star rating in mind? Sentence16: Nope, that's it. Thanks! Question: Who has spoken the sentence 4? (A) User (B) System
Answer:
Answer: (A) User