Place it as the opening beat before you show the booking screen, then follow with a short reaction sound when the price appears. For a longer edit, put a travel fail clip after it so this line works as the setup.
About this sound
A short Portuguese voice clip of a man asking if you have ever searched for a hotel on the internet, delivered like a straight TV advert line in under two seconds. It feels instantly funny and knowing, turning an ordinary travel search into a familiar punchline. It comes from the Senhor Trivago hotel comparison adverts.