If you require special assistance for you or a member of your party (. use of a wheelchair) you must tell us before you book so that we can make sure appropriate arrangements can be made before you commit to the booking. Failure to notify us in advance may mean that assistance is not available. We will do our very best to provide the required assistance, but some services may be limited. If the special assistance needs (including carriage of guide dogs) of customers on the same flight create conflicting health issues, we reserve the right to decide how the conflict shall be resolved. For details of how to book special assistance, view our FAQ section on Medical and Special Assistance..