I am looking for a cheap Asian Oriental restaurant.
Great!  There are 2 cheap Asian Oriental restaurants in the city centre.  Would you like me to book you a reservation at one of them?
Yes. I need a reservation for 2 people, Saturday night at 6:00pm.
I am sorry, but there is not a table available at that time. Would you like to try a different restaurant?
I'm sorry, I was actually looking for a reservation for Monday at 6:15. Are there any tables available at that time?
I have you at J restaurant, 16:15, reference number is : ENOZR5HA. Anything else?
Great thank you for your help.
Is there anything else I can help you with today?
Yes, I actually need a table for 6 people not 2 @ 18:15 on Monday.
Okay I have amended that reservation and your reference number is NMJIT3AV.
Thank you so much and I apologize for the confusion on my part.  That is all I need for now.  Bye.
Okay. No worries. Enjoy your dinner!