Definition: Capture values from conversation about hotels in JSON.
Values that should be captured are:
"price": the price of the hotel
"area": area where the hotel is located
"internet": if the hotel has wifi internet. Capture yes/no
"parking": if the hotel has free parking. Capture yes/no
Customer: "I want a cheap place to stay."
Assistant: "Sure, what part of town do you prefer?"
Output: I need it to be in the city centre