AcmeBrands, how may I help you?
Greetings! I want to buy a few products, but I can't because my cart does not what to update. Can you help me out?
Sure Let me help you with that.

Can you try refreshing the page and adding the item again.
Ok let me give that a shot. I tried adding the jeans I want to order after I did that, still did not work Something else I can do?
Can you log out and then log back in and try again?
Sure, just a minute, I'll try adding my order again after I log in/out. Hey! It worked! Did my order for my $99 Calvin Kleins go through that time?
That's great It did Can I help you with anything else?
Awesome. You are awesome. Thanks for all the help and have a good day :)
Have a good day.