Welcome to McDonald's! May I know your order?
Hi, yes can I have your classic chicken sandwich, with medium fries.
Sure! Would you like to have some drinks?
Yeah, can I get a medium diet coke, please.
Sure thing! And would you like to order some desserts?
No thank you but could I change my order to a large fries and large diet coke?
Of course! I'll do that for you! Just to confirm, you have ordered for 1 classic chicken sandwich, 1 large fries and 1 large diet coke is that all?
Yes, that's it.  Thank you.
Awesome! I've placed your order and kindly request you to collect it from the next counter.
Thank you.
You're welcome! Thanks for visiting us, hope to see you again soon.