derequire input types if checkbox is checked

I have a form that has has almost all input types are required, Like the HTML below:

                <p>Name:*</p>
                  <input type="text" name="Name" required>
                <p>Company Name: </p>
                    <input type="text" name="Company_Name">
                <p>Email: *</p>
                    <input type="email" size="30" name="Email" required>
                <p>Phone:*</p>
                    <input type="text" name="Phone" required>

At the end of the form, I have a checkbox that states,

                    <div class="checkbox">
                       <input type="checkbox"  name="checkbox_name[]" > 
                         <p>I'm Going</p>   
                       <input type="checkbox"  name="checkbox_name[]" >
                         <p>thanks, but I can't go</p>  

                      <input type="checkbox" name="checkbox_name[]" required>                 
                      <p>I have read the above information</p>

Is there a way I can "de-require" the above input types if and only if the "Thanks, but I can't go" checkbox is marked?