I recently purchased a flight with Turkish Airlines using their ‘reserve a ticket’ feature.
For a nominal fee, passengers can hold seats on flights for a week or more.
I found this feature helpful whilst I was sorting travel plans with family for Christmas but need a few days to confirm everyone’s dates.
I wonder why more airlines don’t offer the service? It isn’t hard or complex to implement, and I assume the conversion rate is relatively high once someone has already put down a nominal deposit. I could also see a “lock in your price” being a great feature for price comparison websites too.