Welcome to FT, firouzeh!
There is no way to merge miles from two different programs. Mileage Plus miles expire after 18 months of inactivity in your account. Any activity extends the expiration of all your miles for another 18 months.
Cali: a city in Southwestern Colombia (aka Santiago de Cali). Frisco: a city in Texas or a town in Colorado. Neither of these can be found on the West Coast of the U.S.