What is the best reply for "thank you"?

In the realm of cryptocurrency and finance, when someone extends a heartfelt "thank you" for a transaction, advice, or assistance, what would be the most appropriate and professional response? Is it a simple "you're welcome," a more elaborate acknowledgement showcasing one's professionalism, or perhaps a subtle nod towards future collaboration? How do we balance politeness with maintaining the professional decorum that's crucial in our industry?