Wait patiently.

It's not like you're in a hurry to be anywhere. You might as well sit and wait for him. After another ten minutes, the door opens and the receptionist and Miss Beaumont come out. Miss Beaumont looks flustered again as she walks past you, but the receptionist is calm and collected and takes her seat at her desk.

She smiles at you and says, "Sorry to keep you waiting. Mr. Hilliard will see you now."