With the approaching travel dates, this proactive approach helps reduce the chance of delays or unavailability. How to handle a cancellation or rescheduling of an appointment is anmbm bet gameother frequently asked question. When it comes to rescheduling or canceling an appointment, most countries have specific policies. Generally, people are advised to go into their booking account & follow the instructions. Note that there may be penalties or trouble getting future appointments if you don't show up for a scheduled appointment without warning.