Phrases Offering and Refusing Help

I'd be happy to lend a hand.

Meaning

I'm willing to help.

Translation language

John: I'm struggling with this report.
Alice: <b>I'd be happy to lend a hand</b>.
John: Really? That would be great!
Alice: No problem at all. <b>I'd be happy to lend a hand</b>. What do you need help with?