Take a minute and define why you are doing the migration (purpose), what you expect to accomplish (objectives), and the limitations of the project (scope). It's a good idea to establish these parameters to keep the project focused. You certainly can update these sections of the action plan, but they need to be well defined.
British Airways charges $40 to cancel or change a flight. However, in the past, this fee is only removed from your actually booking cost. Example #1: You book a domestic US flight and pay $2.50 in taxes and fees. When you cancel the flight, British Airways will return the miles but keep the $2.50.
United Airlines. Same-day change fees on United Airlines cost passengers $75. For changes to a ticket that extend beyond 24 hours of the original flight time, passengers must pay a $150 flight change fee for domestic flights, and $250 for international. Airline change fees on any domestic Delta flight will cost passengers $150, regardless whether or not the change for a same-day flight.