I want to book a room in a place that has a 4-star rating.
What price range do you have in mind?
What price ranges are available for a 4 star hotel that includes free wifi and free parking?
There are options in all price ranges- cheap, moderate, and expensive.
I don't care which price range it is as long as it has free wifi and parking.
I would recommend the Huntingdon Marriott Hotel on the west side of town. 
Thanks, I will keep that one in mind when I am ready to book.  I need to find a train also.  From Liverpool Street on Friday.
Sure, what is your destination?
I need to get to Cambridge by 09:15.
We have a train arriving by 9:07. Would you like to make a reservation?
Yes that will work thank you.
great, how many tickets do you need?
I need 5 tickets please. I'll also need the reference number.
Booked! Reference number: HVL4GGV6.
At the station you are to pay 83 GBP. 
Thanks so much for your help today. 
Your welcome. It has been a pleasure assisting you today.