Refer to the input text as context and select the correct relationship between 'Qantas' and 'Alan Joyce' from the available options.
Options: product/material produced, owner of, chief executive officer, platform

Qantas has signalled the potential to fly more routes from cities other than Sydney once it receives its new Boeing 787-9 aircraft from 2017 and chief executive Alan Joyce has mentioned Melbourne-Dallas as a possibility.
chief executive officer