I would like to stay in a guesthouse that has free parking while I'm in Cambridge. Thanks. 
I have 21 options for you. What area would you like to stay in?
It can be anywhere as long as it has a 4 star rating.
That narrows it down to 16. Do you care about the price?
I would like a moderate price range.
There are nine guesthouses what part of town would you like 
I'm not concerned with the area - can you recommend a nice place that fits with what I'm looking for?
I think you would like the acorn guesthouse.  Would you like me to book a room?
Yes I would like you to book it for me
What day would you like to stay on? And how many days? How many people?
book it for 7 people and 2 nights starting from sunday.
I have made those reservations and your reference number is ODO9D763.
thanks for your help. i appreciate.
Is there anything else I could assist you with today?
no that is it for now. thanks for helping
It was my pleasure. Have a nice day. Good bye.