Create a Python program to aid an imaginary medical clinic in optimizing the procedure for

issuing medical certificates to online patients. The program will interpret patient inputs,

considering $\text{'}Y\text{'}$ or $\text{'}y\text{'}$ as 'Yes' and $\text{'}$N$\text{'}$ or $\text{'}$n$\text{'}$ as $\text{'}$No$\text{'}.$ The program should include several decision

branching, and each decision should lead to a specific outcome.