I got asked out

I'm not single. I do plan on showing this to my other half but I won't lie, it was flattering. Should I ghost this customer or should I text her and let her know I'm flattered but not an option?

I'm not single. I do plan on showing this to my other half but I won't lie, it was flattering. Should I ghost this customer or should I text her and let her know I'm flattered but not an option?