Javascript - Redirecting parent URL based on iFrame action

Question

I have a booking system embedded into website via iframe - I would like to redirect the user to a Thank You page once the booking has been submitted.

There is a receiveMessage being sent to the parent frame from the booking system iframe, wondering if I can use this as the trigger to redirect the page by adding to the code below?

Thanks in advance

window.addEventListener("message", receiveMessage);
function receiveMessage(e) {
if (typeof e.data !== 'string') return;
if (e.data.search('cliniko-bookings-page:confirmed') > -1) {
var dataLayer = window.dataLayer || (window.dataLayer = []);
dataLayer.push({
'event': 'clinikoBookingCompleted'
});
}
}
</script>```