German phrase
Vielen Dank, aber das ist leider nicht ~.
Meaning
Thank you very much, but unfortunately that is not ___
When to use it
It politely says no. It thanks someone before gently refusing a request or inquiry.
Example dialogue
Haben Sie das Buch noch?
Do you still have the book?
Vielen Dank, aber das ist leider nicht verfügbar.
Thank you very much, but unfortunately it is not available.