A travel quotation is a set of borrowed promises
An agency quoting an itinerary is assembling components it does not own and cannot hold. Hotel rooms are released by the property on its own release date. Airfare exists in a booking class that empties without notice. A land operator holds a vehicle until it needs it for somebody else. The agency contributes the itinerary design, the markup and the speed of the reply, and those are genuinely the only variables under its control.
Managing quotations in travel is therefore mostly about being honest, in advance, about which parts can move and when. Clients accept volatility readily if it is explained at the start. What they do not accept is a figure presented as settled that turns out not to be.
