singling out words in a string

Basic question here!

We're creating a chat bot using JavaScript which responds to certain words contained in messages posted by users on the chat.

Currently it responds to:

if(input.includes('bot') {}

however this also makes it respond to other words such as "bother" "bottle" and so on. We have tried the following

if(input.includes('bot ') || input.includes(' bot ') || input.includes(' bot')) {}

which actually stops it from responding to the stand-alone word "bot" and still responds to sentences such as "we both are" (because of ' bot'h are)

It's been a while since I've programmed things and would like some help with this, thanks!