I landed at Deauville a few years ago, and was helpfully offered assistance by the Chamber of Commerce guy to get a hotel. "No need, thanks" I (cockily) said as I had the card of the hotel that I last stayed at and we went off merrily to this hotel just outside Honfleur.
En-route the taxi driver asked if I had booked, and on hearing that I had not he told us that pretty well everywhere was fully booked because of some festival!! He was right, but helpfully we tried a few before giving up and agreeing to go across the bridge to Le Havre.
We did find a very nice hotel, and the driver even offered to take us back to Honfleur for free, which we declined as we would still have had to pay to come back!!
Next day we got a taxi to the airport, and it took a couple of attempts of my french to convince him that we wanted Deauville not Le Havre airport! All in all, the total round trip in taxis was £100. It brings back fond memories!