Need urgent help for this  Question related to LWC.--

 Make two address fields on CONTACT Object , correspondence address and permanent address.
                   We have to fill both the fields with different addresses, if anyone of them is empty then generate message, 
                  and if the checkbox is selected then both the addresses should be same. I Have to do this with LWC

// i have created 2 custom field on contact and 1 checkbox field as well.


..only below field requried in LWC page according to my question's requirement-- .

Last Name = 

Email = 

correspondence address = 

checkbox = [true,false]

permanent address = 


//  can anyone help me ,  I will be really greatful :-)
// make this simple and easy as much you can,but i need this urgently,plese