As said you will need to create a chat route with objects that tell what type of message to expect and how to handle the check and response and next chat_route to use on a correct answer.
So for example
{"looking_for": "yes", "type": "equals", "response":"I am, do you?", "next":1}
looking_for would tell your flow that the chat_route element is now expecting a yes answer, the if conditional should use
type which in this case is equals. So now the logic knows to look for yes and check the values is equal to yes. If type was "include" and look_for was user, the logic would then check to see if your chat response ben is in the array in msg.look_for.users.
response would be the response to a correct answer, probably the next question. next tells the logic where to go for next chat_route.
(see edit example flow below)
You will need to set out your questions and answers and work a chat route you require and what checks and look_fors may be needed at each stage. You will also need to store your position in the chat route.
[edit] example of a flow no code, it will check different questions according to msg.chat_response.type
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1st must contain.
2nd must equal.
3rd must be in msg.look_for.users array.
though you explained its Logic from JS side but from implementation side still not understood it fully, will try to understand and get back here.
