Live chat feature for Ionic 3 app


I have a built an Ionic pp in which I want to add a live chat feature.
My requirement is that, I want the chat icon to be visible only on a specific page and not throughout the app. However, with the options of purechat and zendesk that I have tried, the chat icon appears fixed at every page on my app which is not how I want it to be.

Please suggest how I can achieve this feature the way I want and any livechat widgets that you are ware of. Free or paid doesn’t matter.