Mind Your Language S1, S2 and S3 - https://archive.org/details/mind-your-language-s-01-e-02-an-inspector-calls.

Take Your Partners

Miss Courtney blackmails Mr. Brown into buying two expensive tickets to a charity dance, to which he agrees to take Anna. However, problems arise when misunderstandings lead Miss Courtney and Gladys to believe that they will be his date for the evening.