Hi I am cancel my visa 18 March and book the...

If you want to leave the UAE , here is the following information:
You must contact one of the airlines to book your flight ticket. If you encounter any problems that prevent you from being allowed to leave the UAE, you should contact the General Directorate of Residence and also the embassy of your country for coordination to allow you to travel.
Your country's embassy will assist you in leaving the UAE before the expiration of the visa
This is to avoid paying any fines