Get user message when entering in a flow

I want to get the message entered by user, when bot enters fallback flow.

Use case:
user enters → I wan to know about my order id - 1234
which bot didn’t understand and enters to the fallback flow;
then I want to send the user message to our backend using API.

So, my question is how to get the user message, as it is not stored in any variable.

Found the solution;
{{{data.message}}} contains the message sent by user.