I'm looking for a train leaving cambridge and arriving by 11:45
Ok, do you know what your destination is?
Yes, I am going to Ely.
I have a train that leaves at 7:50 Monday morning to to to Ely.  Does this interest you or is there another day you had in mind?
I would like to leave on Friday.
Is there a certain time on Friday?
I need to arrive by 11:45.  
I have the TR8792 which you will arrive at 10:07. How many ticket please?
i would like a ticket for 8 people.
You will need to pay a fee of 35.2 GBP at the station and your reference number number 7089L1RT.
i am also looking for a place to stay. The hotel should include free wifi and should include free parking.
The hotel should have a star of 4.
We have 19 options that meet your criteria. Would you like to narrow it down by area or price range?
Price doesn't matter. I need a reservation for 8 people, 3 nights starting Tuesday. If that day fails, the Sunday and the reference number.
Arbury Lodge Guesthouse is supposed to be nice, as long as you're ok with a guesthouse rather than a hotel. Would you like me to book that one?
Yes, please, for 8 people, for 3 nights, starting Tuesday!
You're all set! Your reference number is YGF92ATC. Can I assist you with anything else?
That is all I need.
Enjoy your stay.