I'd like to place an order
Hello! Welcome to McDonald's! What would you like to have today?
I'd like one big mac and a large fries and a large coke
Perfect that means you'd like to have a large Big mac meal right?
ok, the meal is fine
Okay! Would you like to go with ice or without ice in your large coke.
with ice I'd also like a bacon smokehouse burger, medium fries and a large sprite
Done! So I'll confirm your order now. Great! I'd request you to please pay $6 at the next window where you'll get the entire meal as well.
Wait, I want to order more food
Sure! Go ahead. SCould you please have a look at our menu and let me know the selected items to be prepared.
I'd also like a bacon smokehouse burger, medium fries and a large sprite
In that case you would like to have a smokehouse burger meal right?
yes
Done! Great! I'd request you to please pay $10 at the next window where you'll get the entire meal as well.
I'd also like a double quarter pounder with cheese
Sure! Seems you're hungry today. However I'll be glad to serve you right away. There is slight change in your bill amount. Please pay $13 at the next window where you'll get the entire meal as well.
Are you saying I'm fat?  That's insulting! There's three of us here!
Oh! I'm so sorry! I didn't mean that at all. You are a great customer and you will be always remain the best for us.
That's all I want now.  I'm ready to pay
Perfect! Anything else you want to have today?
Are you still there?  I'd like to pay!
Oh! I apologize. I thought you paid the same at the next window. Please pay $13 there.