"The holiday Michael and Hetty, an elderly ..." joke

The holiday
Michael and Hetty, an elderly couple, are on holiday in Devon when they decide to take a drive into the countryside. Hette is driving when she gets stopped by a traffic policeman.
The officer comes up to the car and says to her, “Madam, did you know you were speeding?”
Hette turns to Michael and asks him, “What did he say?”
Michael yells back at her, “He says you were speeding.”
The policeman then says to Hette, “May I see your driving licence?”
Hette turns to Michael and asks him, “What did he say?”
Michael yells back at her, “He wants to see your driving licence.”
So Hette gives the officer her licence.
The policeman looks at the licence and then says, “Ah. I see you are both from Golders Green in London. I spent some time there many years ago and I’ll always remember the time that I went on a blind date with the ugliest woman I have ever seen in my life.”
Hette turns to Michael and asks him, “What did he say?”
Michael yells back at her, “He says he thinks he knows you.”