Jack got himself together enough to respond when the woman spoke, although his accent was perhaps stronger than it might have been otherwise. "Ah, no. It was not in my plan to dance tonight. These girls, they are all very," he paused, searched for the word, "juvenile, I think." He had been so reluctant to court these past few years not because no woman had caught his eye, but because he was expected to marry a woman younger than him, possibly by many years, and he was not at all eager to do so. He would wait until he was older, he thought, and marry someone closer to his age. If anyone would ever consent to marry him at all, that was.
Jack watched the woman try to dab up the wine and realized, probably around the time she did, that it was most likely a fruitless effort. He pulled his wand from his cane - something he brought only when he did not plan to dance, and an affectation he was allowed only because he was 'foreign' - and held it up. "May I assist you? It is only that my mother, she taught me many cleaning charms. Of course, I- I understand if you prefer that I do not." Jack flushed again, realizing he was being quite presumptive. He was, after all, offering to perform magic on a woman's clothes, and they didn't even know one another's names.
Constance Sykes
speaks with a French accent. though jack might sometimes refer to themselves with she/her pronouns, they are always presenting as male and your character should refer to them as such