It's not directly about space tourism but the accident takes place on a commerical space tourism operation. there are also spacecraft for charter in the book.

Commercialisation of space is taken for granted in most of is books, and even discussed in passing, although it is rarely the major theme.

The Sands of Mars is also in passing about the first passenger liner to service Mars, and the difficulties of making a Mars settlement pay its way.

Fountains of Paradise looks at the commerical transformation possible by space elevators.

Imperial Earth looks at how solar system economoies would be revolutionised by propellant mining.

Rendezvous with Rama speculates how Mercury might become the economic powerhouse of the solar system, thanks to abundanrt heavy metals and abundant energy.

Earthlight looks at a how metal shortages slow development of the solar system and how discover of lunar ores leads to war.

And of course Clarke pioneered thinking about the revolution that would be brought about by COMSATs.

Jon