I'm look for a train leaving cambridge.
I can help you with that. Where is your destination? What day do you want to travel?
I want to travel to kings lynn on saturday.
Do you have a timetable that you need to stick to?
I need to arrive by 12:30.
TR1817 leaves Cambridge at 11:11 and arrives in Kings Lynn at 11:58. Would this work for you?
Yes that sounds good, what's the trip duration on that one and how much per ticket?
The total travel time on that route is 47 minutes. The cost per ticket is 7.84 pounds. Would you like me to book you a ticket? 
No thank you, could you find me a 4 star guesthouse that provides free parking?
There are 16 guest houses rated 4 stars with parking. Are you thinking of a price range or part of town?
In the moderate price range, near the centre of town please.
I'm sorry, there are no guesthouses that fit those criteria.  Would you like to try something else?
Are there any available in another area of town that meet those requirements?
Yes I recommend Acorn Guest House in the north.  Would you like me to book it?
Not right now, but I do need their phone number.
Absolutely, their phone number is 01223353888. Can I help with anything else?
thank you, you've been quite helpful 
I'm glad to e of help. Have a lovely day.