Editing Codeshare agreement (section)

==Reasons and advantages==
Under a code sharing agreement, participating airlines can present a common flight number for several reasons, including:

===For passengers===
* Connecting flights: This provides clearer routing for the customer, allowing a customer to book travel from point A to C through point B under one carrier's code, instead of a customer booking from point A to B under one code, and from point B to C under another code. This is not only a superficial addition as cooperating airlines also strive to synchronize their schedules.

===For airlines===
* Flights from both airlines that fly the same route: this provides an apparent increase in the frequency of service on the route by one airline.
* Perceived service to non-serviced markets: this provides a method for carriers who do not operate their own aircraft on a given route to gain exposure in the market through display of their flight numbers.