Need Help with B2 Visa Extension-Thank You

[rishikapoor]

Hello All,
My mother in law came to the US in November 2019 and I94 will expire in May 2020 and we would like to request for visa extension due to the current pandemic. Could you please suggest if I need to state the current pandemic situation as the reason or a generic reason should be fine for the extension process? Could you also please share a sample cover letter that helps with the extension process if you happen to have one.

Thanks in advance.

[Libra_14]

As per current situation, giving this pandemic travel ban as reason to avoid travel back home will be more favorable.