What do you say next?

Well, I'll tell you how to respond in this free email template (straight from my email templates which, ahem are not free). 

"can you do my makeup?"

congrats, you received a client inquiry!

PS - I'm SO freaking happy for you! Getting client inquiries no matter how big or small is a BIG DEAL!

-  Convert those inquiries to client  
- Be confident in your worth
- Don't work for free!