Trying to rent a plane in Vietnam

‘Air walks on a plane in Tan Son Nhat International (Saigon)’, is what I found on the internet. ‘It is a rental aircraft. For a small fee you can rent a plane for air walks.’ Great news I thought, we can focus on aerial photos in the Mekong Delta after we decided to postpone a flight in Cambodia due to bad weather. (Every day around 4pm clouds rolled in over Tonle Sap Lake, spoiling the beautiful light you need for aerial photos.)