Hello, how may I help you today?
Hi, my name's David Williams.  I placed an order as a guest, but I need it as soon as possible is there still time to upgrade to overnight shipping
I see, let's see if there is anything we can do here, one moment.

I will need to verify your order, so would you mind giving me your account ID and Order ID?
NHVAVOBB9C 8674893747 in that order
Thank you for that, do you know your shipping status at the moment?
It says that it is "In Transit" does that mean that it's still within your warehouses?
That means that it has already shipped and the date can't be changed. However It is very likely it will arrive today or tomorrow regardless
Okay, well, I suppose a day doesn't make much difference
So it is on the next to last step
Thanks for all your help
The last step would be Out For Delivery. I am glad I was able to help, is there anything else I can do for you today?
No that was everything.  Thanks
Thank you for your business and have a great rest of your day!