I want to add custom url on service more info button so how should i change the URL?

Question:
Actually, I’ve created the website for my business where I’m adding the services and giving the read more or more info link, but now I want to switch that button link with a custom url, which means if customers press the book now button, it should redirect to the other page where I’ve setup the online booking third-party software. So anyone can help, how can I do it?

What are you trying to achieve?
I want an answer or path from where I can easily update the custom third-party URL in the services action button called More Info. Rather than redirecting to the service detail page, it should redirect to a third-party website where further processing will be taken care of by the third-party platform.

Additional information:
Actually, I’m using the Zenoti platform for online booking services cloud-based software. So if I enable online booking functionality from the services page, it’ll redirect and continue with the default booking functionality rather than providing the add custom URL things. So kindly help me. How can I fix this?