HERMIONE
Ah yes. Our train absconder. Finally joining us.

ALBUS
Hermione?

He looks amazed. HERMIONE is standing at the front of the lesson.

HERMIONE
Professor Granger I believe is my name, Potter.

ALBUS
What are you doing here?

HERMIONE
Teaching. For my sins. What are you doing here? Learning I hope.

ALBUS
But you’re... you’re... Minister for Magic.

HERMIONE
Been having those dreams again have you Potter?

Harry Potter and the Cursed Child - Chapter 2 :
See this quote in the Pensive -