I am a tourist in the UAE and could not leave due...

Please note that, according to the facts presented to us and according to a law established for expatriates in the country and with the closure and imposition of the ban in the UAE because of Corona virus, the visa will be extended automatically until the airports return to work and remove the ban without any responsibility or fines imposed on you .So you can leave immediately upon the return of airports to work without any responsibility on you in general, and if you have any other intention , you can clarify, thank you

Do not worry about the request to extend the visa before its expiry, and with the imposition of the ban by the state, the extension is done automatically and there is no penalty or a fine imposed on you and you may leave the country immediately after the lifting of the ban or the correction of the residence status because the matter is a public emergency.
Thank you!