Generating Text Snippets from Variables Without AI: Can you assist?

hey I need some help with building a text snippet based on variables. I have 4 variables that determine what I can write in the snippet. I want to write four alternative snippets, one per each veriable but ONLY if this variabe exists. I would prefer to NOT use AI credits for this purpose. here's an example. say the variables are SDR_name and HoS_name. the snippet is "congrats on hiring {{SDR_name}}" or "I see {{HoS_name}} just left the company". or it's empty, if SDR_name and HoS_name are empty. seems pretty straightforward. but I can't get it to work. can you help please?