Hello, I'm looking for a guesthouse in the north of town.
There are quite a few guest houses in the north. Worth House is an inexpensive 4 star option offering both free wifi and free parking, if you'd like a recommendation.
I need an expensive one.
I'm sorry, there are no guest houses in the north that are expensive.  There are also no expensive hotels in the north either.  Would you be flexible on location?
How about one in the moderate price range?
I can search and make a few recommendations for you.
Were you able to find a moderately expensive guesthouse in the north? I need to book one for 4 people and 2 nights starting on Wednesday.
There are no matches. Are there any other locations you would like to find a guesthouse? 
Is there one in the moderate range then?
Yes, I found 5 guesthouses in the moderate price range. Are you looking for any special amenities?
Nothing else, book it for 4 people and 2 nights starting from wednesday.
Ok I booked Acorn Guest House for you.  Reference R9SALJYN.  Their phone is 01223353888.  Anything else I can help you with?
I'm going to need a ride to bishops stortford. Is there a train I could get on, around say... 10:30?
There are trains that depart every day at 11:29 and arrive in Bishops Stortford by 12:07. Did you have a particular day in mind?
Yes, I would like a train for Friday departing from Cambridge, please. 
The TR8078 leaves Cambridge at 11:29.  I can book that if you'd like, I just need to know how many seats you'll need.
Not right now, but can you tell me the per person fare?
Absolutely, the price per person is 10.10 pounds.  Is there anything else that I can help you with today?
I should have asked before...What is the travel time?  The duration?
The travel time is 38 minutes from Cambridge to Bishops Stortford.
Thank you, that should be all today.
You're welcome.  Enjoy your trip!  Goodbye.