Response:

Thanks for the offer! It’s always nice to have someone else help you work on a problem. Hopefully you’ll have time before lunch to prepare for other questions that might be asked. While preparing for the questions you’re likely to get a better understanding of the problem. So, even if you don’t yet know how to fix it, you’ll be better informed.

Reference:

• Step 28 – Stop and think

Related questions:

• Don’t you ever go home?
• Tea, coffee or something stronger?