be away from (one's) desk

To not be at one's desk at a particular time. This phrase is typically said in an office environment on another person's behalf (as by a receptionist or assistant). I'm sorry, Mr. Medina is away from his desk right now. Can I take a message? The manager will be away from her desk all afternoon, I'm afraid. I suggest calling back tomorrow. A: "Hey, why isn't Carrie answering her phone?" B: "Looks like she's away from her desk."