[Evelyn is fully aware that she extended the invitation to all parties, and not just those older than eighteen, which is why she is utterly delighted to see Wirt on the line.]

Oh, Wirt! I'm so glad, and I'm very happy to have you.

[The tentative approach he is sustaining regarding a plus one, however, is oddly charming. The fluster suggests mild romantic undertones.]

I wouldn't fret, were I you. I think it would be a marvelous opportunity for you and your potential dance partner to have a nice evening out.