“Customer Service, how can I help you?” “Oh hello, I wonder if you can. We have an existing booking with connecting flights in Lisbon, but we’re a little bit worried about the short connection time at Lisbon Airport. Is it possible to change just the first flight, the one from Heathrow to Lisbon?” He asks for our booking reference, then goes quiet. Canned music messes with my ears for a while and then he’s back. “I am just checking your flights, you should be OK. The connecting flight will be OK”. “Yes but we’re worried. If we miss that second flight, there isn’t another one to that destination for three…