answered:
The hippogriff can hear the pony’s voice from inside “Coming!” and a few seconds later the door opens “Oh. Hey there Vindicar.”
"Greetings, my friend!" Birdpony smiles, "Good to see you again, even if I’m here mostly as a customer."
The repairpony smiles back at him “Goot to see you too V. And it doesn’t really matter if you are ‘just’ a customer or not, a friend is a friend” He goes back and nods for Vindicar to enter.