Sorry for rescheduling. - Thanks for being flexible!
Sorry for venting - Thanks for listening.
Sorry for running late - Thanks so much for waiting.
Sorry I had to take that call - Thanks for your patience!
Sorry for jumping in - I have an idea that may help.
Sorry for the mistake - Thanks for catching that!
Sorry, I don't get it - Could you repeat that? I just want to be clear.
Sorry for taking your time - Thank you for your time; I appreciate it.
Sorry, I need your help - I would appreciate your assistance with this