Contact support if No results found while searching in confluence

[Vasily Puntus]

If a customer didn't found an answer to question while searching, confluence shows the following message

https://www.screencast.com/t/ZBmLqLMX58e

https://www.screencast.com/t/3NrqBfFWxTxx

But we want they would be able to contact us, for example as it implemented in JSD support widget

https://www.screencast.com/t/AAfzfjcZEj

How can I add a button or customize the "no results" message?

Thank you