On any given day there are a number of unforeseeable circumstances that can cause us to deviate from a pre-arranged schedule. Real-life technicalities like coming down with an illness or having to re-prioritize is just a simple fact of life. Spring is here and the term flexible cancellation is trending because families are busier than ever pulling together schedules and trying to book a fun-filled summer vacation. Travelers really do want assurance that if plans change, they won't be out hun...