Um, sorry to bother you, um. . . my name is Rachel. I'm new here. Can I ask you a favor?
Hi Rachel, welcome on board. I'm afraid I can't help you right now. I'm getting ready for a very important meeting.
Excuse me, but can I bother you for a sec?
You know what, I'd love to help you, but I'm about to meet an important client. Do you wanna try Sean instead? He sits right over there.
Sorry to interrupt you Sean, could you do me a quick favor?
Actually, I'm working on a document that is due in a couple minutes. I really can't talk to you right now. Sorry about that.