Let's say a client is asking a question online, and you put him on hold to confirm your will be answer to your manager, because you want a sure answer before you give it to the inquirer. You say:
Could you please wait just a moment while I confirm this.
Could you hold on a minute while I confirm this. (I think this is better)
Which is more ok to say? As I've said, I believe sentence 2 is better than sentence 1.