Narcissa let out a slightly sardonic laugh as Hermione made the comment about her being her mother. Her mood lightened though as Hermione seemed to clarify a bit. "Well, I am having a nice time as well."
Having wealth, her ex-husband's and her family's, Narcissa had a tendency to not look at the prices of things too much. This often caused her to frequently forget that others did not think the same. Nonetheless, she expected and hoped to pay for Hermione's meal at the end.
Narcissa nodded as Hermione lead to a more private table, something Narcissa appreciated. "This is lovely." she nodded, taking a seat.