Generate a sentence about this data: Ashgabat International Airport, operatingOrganisation, Turkmenistan Airlines; Turkmenistan Airlines, headquarter, Turkmenistan; Turkmenistan Airlines, hubAirport, Turkmenbashi International Airport.
Sentence:
Ashgabat International Airport is operated by Turkmenistan Airlines whose hub is Turkmenbashi International airport and has headquarters in Turkmenistan.