Hi, I'd like to find out more about any luxury hotels that have at least a 3-star rating.
I have found 2 luxury hotels that both have 3 star ratings. The Gonville and The Lensfield hotel are both available to book. 
The hotel should be expensive and does not need to have free parking.
Both the Gonville and Lensfield are expensive. Both also do have free parking. Do either one of those sound suitable?
the first one sounds ok to me.
I can go ahead and book it for you.
Yes please make a booking for 1 people and 5 nights starting from saturday.
I made a reservation for you at the Gonville Hotel for 5 nights starting Saturday. Your reference is PUX8NRCE. Is there anything else I can help you with?
No thank you.  That was all I needed.
Ok, have a great day!