Is that all?

LADY:I want some envelopes, please.
SHOP ASSISTANT:Do you want the large size, or the small size?
LADY:The large size, please.
LADY:Do you have any writing paper?
SHOP ASSISTANT:Yes, we do.
SHOP ASSISTANT:I don't have any small pads. I only have large ones. Do you want a pad?
LADY:Yes, please.
LADY:And I want some glue.
SHOP ASSISTANT:A bottle of glue.
LADY:And I want a large box of chalk, too.
SHOP ASSISTANT:I only have small boxes. Do you want one?
LADY:No, thank you.
SHOP ASSISTANT:Is that all?
LADY:That's all, thank you.
SHOP ASSISTANT:What else do you want?
LADY:I want my change.