Can you help me find a train leaving on saturday departing from london kings cross?
Certainly! Where are you going? What time of day do you want to leave?
I am going to Cambridge and would like to leave after 11:45.
The TR5729 fits your needs. Would you like to make a booking?
What is the travel time for TR5729?
The travel time is 51 minutes. 
That's great, I also need a hotel with free wifi, I would prefer a 3 star place, please.
Did you have a preference for the area?
In the centre please.
Okay I have one hotel matching those criteria called The Gonville, would you like me to book it for you?
Yes. Saturday, 2 nights, 6 people. Reference number please.
Your booking was successful and the reference number is 6IX4YPBK. Is there anything else I can help you with?
No that is it. Thank you.
Enjoy your visit!