I have recently traveled with your company, and while I am generally very pleased with your service, I would like to point out that your idea of what constitutes a sandwich seems to differ from my own. Not that I claim to be some kind of truth-police, but I belive that in this case I have the moral high ground.
In the Oxford English Dictionary
, we can read the following about sandwiches:
An article of food for a light meal or snack, composed of two thin slices of bread, usu. buttered, with a savoury (orig. spec. meat, esp. beef or ham) or other filling. [...]
I would especially direct your attentiton to the word «bread». There are of course many types of bread, and while I personally do not consider white bread to be real bread, I admit that it would be perfectly correct call two slices of white bread with ham between them a ham sandwhich.
I think, however, it is a bit of a stretch to apply the same word to a croissant with ham. Nevertheless, a croissant with ham was exactly what I recieved, when I accepted an offer of a ham sandwich abord the 6 o'clock flight to Edinburgh on saturday last.
I enclose a picture of what I would consider to be an excellent sandwhich. Even though it has a rather larger number of bread slices than standard, it could easily be adapted to use aboard an aeroplane by making it with only two.