I'd like information on trains departing from Cambridge and arriving at London Kings Cross.
We have trains departing for Kings Cross every 2 hours.  What day would you like to travel?
I would like to leave Sunday and arrive by 14:30.
TR7447 leaves at 13:00and costs 18.88 pounds. can we book?
Ok.  Thanks.  That's what I wanted. 
Does this mean you would like me to book the train for you?
Yes, Can you please?
Here is the reference number VHNBPCYY
thanks so much for all of your help
Is there anything else I can do for you today?
I need to find an expensive Mediterranean restaurant. 
There are 2 expensive Mediterranean restaurant in the centre. Would you like a reservation for one of them?
Yes whatever one you recommend. I'll need seating for 7 people at 11:00 on Sunday please.
I would highly recommend the La Mimosa, I have you booked for Sunday at 11. The reference number is MZ1VEJL0.
Thank you that is all I needed. 
You're welcome. Enjoy your trip! Goodbye