I want to make sure you have everything you need. If you have more question or need more time just let me know.
just let me know if you still need more time, okay?
I haven't heard back from you, so just to ensure I have everything correct, I'd like to give you a quick call to confirm.
are we still connected?
have I resolved your concern?
Is everything resolved now?
Since you haven't responded to my chat let me give you a quick call
My pleasure to help you with this. Is there anything else I can assist you with?
Is there anything else I can assist you with?
Is there anything else I can assist you with today? I'd be more than happy to help.