Maybe yes, something like that. You buy a gift voucher from your chosen merchant and then spend it, but there is no KYC for the purchase.

I ended up buying a Visa card from nostr:nprofile1qqsr4uv8hlsqjgxcwp52d0xll3y0fvjp68vzt9xd89g3ngcgjyzpv4qppemhxue69uhkummn9ekx7mp0qyvhwumn8ghj7un9d3shjtnndehhyapwwdhkx6tpdshsat8c4m and paying for the flight on a regular website… that way I could get the best price