When Hume and Kant met each other

In a soirée of philosophers

Hume: 'Hi mate. I'm Hume. Can you tell me what your name is?'
Kant: 'Kant.'
Hume: 'Really? How come?'
Kant: 'Dunno. It was my parents.'
Hume: 'That's strange. They didn't give you a name.'
Kant: 'Yes, they did.'
Hume: 'So, can you tell me?'
Kant: 'Kant.'
Hume: 'Well, I've got to go. See you around, Mr-who-can't-say-his-name.'
Kant: ???