Craft your own empathy statement
Why the sad puppy picture? Because dogs seem to be the masters of envoking empathy in us humans.
"Ok, so I apologize for your inconvenience. What else am I supposed to say?"
Stop, don't do that. Empathy is so much more than "I apologize for your inconvenience." In fact, NEVER use that sentence. It is now dead and a sure sign that you're likely less concerned about the customer's issue and more concerned about just getting through the call. That mindset is counter productive and will lead to longer call times, frustrated customers, and poor surveys.
There are many other ways to verbally express your empathy.
I understand how frustrating it is when . . .
I know how confusing it can be to . . .
I'm sorry to hear that
I realize how complicated it is to . . .
Now create your own.
Start with "I" you are the person currently engaging the customer so you are the company for the customer in that moment. It all has to come from you. The next word should be a word that expresses understanding, acknowledgement, or apology.