I found that I have temple names I reserved from March 2020 before the pandemic hit that needs works. I do not know if I could use them since their reservation is expired. I wanted to know the policy for this matter.
@Calvin Gil A. Vijandre
The ordinance reservations are currently not expiring. If you go to your "My Reservations" - https://www.familysearch.org/temple/reservations and look at the reservations you are inquiring about, you will see that the expiration date has been extended while the temples are in phased operations.
Please check out this article for more information:
What happens to my ordinance reservation during the COVID-19 outbreak?
From the Help Center article about Family Name cards:
The family name card that you print for the temple does not expire, even if the reservation on FamilySearch does.
If you've had a family name card for more than a few weeks, please check Family Tree to confirm that the ancestor still needs the ordinance performed. The ordinance could have been shared with the temple, or someone else may have reserved it.
If so, you may simply destroy the family name card. It is no longer needed