I'm looking for a train leaving on Saturday from Kings Lynn.
Do you have any time preferences? 
I need to leave after 13:00.
What will your destination be?
I am wanting to go to Cambridge. 
The TR1499 leaves at 17:11.  Can I book some tickets for you?
Yes book for 4 people
You're reference number is BIAZMBUC. Is there anything else I can help you with?
I am looking for an expensive restaurant in the centre city. 
I have several restaurants in the centre in the expensive range.  What type of cuisine would your prefer?
No preference. Can you recommend one & book a table for 4 people at 17:45 on saturday. & may I have the reference # please?
I would recommend british cuisine. Would that be okay with you?
That would be fine.  Is it available Saturday at 17:45?
The restaurant Fitzbillies is available, and I've made you a reservation. Your reference number is 4WGDGOSA. 
Thank you for your help, have a nice day.
It was my pleasure to serve you. Please contact us again if you need any more assistance. Have a good day.