Hello, how can I help you today?
I have a question about a pair of boots. I want to find out if they are in stock in my size. I wear a size 17 and a half.
Okay, could I get your name please?
Albert Sanders Why does the website say unavailable?
It appears that size is out of stock. I will write a report to our purchasing team to let them know.

We should get more in of that size soon. Is that all right?
Can I back-order the item?
What was brand name of the boots?
Tommy_Hilfiger
Okay, we can back-order it for you.
That's great. Thanks for the help.
Should we use the same credit card that is on your account?
sounds good
Okay, your  back-order has been placed. Is there anything else I can do for you?
That's it, thanks for the help!
Have a good day!