I'd be delighted to assist, but my expertise lies elsewhere.

Meaning

I'm willing to help, but I'm not the right person.

Examples

• John: 'Could you help me with this financial modeling?'<br>
• Alice: '<b>I'd be delighted to assist, but my expertise lies elsewhere.</b> Perhaps you should consult with our finance team.'
• John: '<b>I'd be delighted to assist, but my expertise lies elsewhere.</b> I think a graphic designer would be better suited for this.'
• Alice: 'Can you help me with this design brief?'<br>