Simulate accounting flow（in Japan's case）
The bill is 〇〇 yen.
store clerk
OK
You
Would you like a shopping bag?
Is it okay to charge a fee?
store clerk
please
You
Would you like me to warm up your bento?
store clerk
Bento? what?
→ She is asking if lunch is to be warmed up now.
Yes please/No thank you
You
Do you provide chopsticks (spoon, etc.)?
store clerk
Yes please/No thank you
You
It’s almost like this.
Now you can buy it at a convenience store without hesitation!