If you want to add a hyperlink in a Bot Response, then you can make use of HTML Anchor tags in Raw Text/JSON.

Let us understand this in detail,

• Navigate to the Step, where you want to add a hyperlink in the Bot Response section.
• Add a RAW Text/JSON Chat Element as a Bot Response. 
  
• Add the following HTML command in it - 

  <a href="actual link here">The text you want to show</a>

• In this case, we would be adding -

  <a href = "https://www.haptik.ai/">This is your test link</a>

• Modify the User Messages accordingly, and Train the Bot.
• Once the Bot is trained, you can now Test it. 
• As shown in the image below, I requested the bot that I wanted to check the link, to which the bot responded with the "This is your test link" response, which is a hyper link. 
• After clicking on the text containing the link, it lead me to the Haptik website, as I had configured that link over that text. 
  
  

So, this is how you can add links without having the need to add a Button.