"What can I be of help"

Solution 1:

The sentences contains some quirks, and a lot of references are omitted.

Sense is not quantifiable, so the variation a lot of sense feels more natural and is more commonly used than lots of sense.

The expression isn't what can I be of help but rather what I can do to help or how I can be of help.

I fleshed out the sentences so that they read like written language:

That makes a lot of sense. I'm not sure what I can do to be of help (and I already have two sessions on the official schedule), but I would be happy to be of help.

Solution 2:

Better to say How can I be of help? or What can I help with? (yes I know there is a preposition at the end), or even more simply How can I help?