Re-scheduling of booking for less than 72 hours is available in very limited situations which are beyond your control and the consequences of which could not have been avoided even if all reasonable measures had been taken. This includes: terrorism, significant risks to human health such as the outbreak of a serious disease or natural disasters such as typhoons, floods, earthquakes or weather conditions which make it impossible to travel to HKSH. In such event, HKSH might allow for a change or re-scheduling of booking, subject to the sole discretion of HKSH.