1. From your dashboard, go to the Appearance > Customize >Header >Above Header


2. Now check the Checkbox to show the Section 


3. Now check the Checkbox to show the Link button


4. Now add the Icon, Button Text, and Button-Link


5. Click on the Add New Field and add the Office Contact


6. Click on the Add New Field and add the Social Icons


7. Hit on the Publish



See Live Preview:-