Answer:
Equilibrium quantity would increase. there would be an indeterminate effect on equilibrium price
Step-by-step explanation:
If fewer people go on vacation fewer people would board planes. As a result, the demand curve for planes would shift inwards. This would lead to a decrease in equilibrium price and quantity.
As a result of the higher cost of providing services, fewer planes would be in operation. This would lead to an inward shift of the supply curve. Equilibrium price would increase and equilibrium quantity would decrease.
Taking this two effects together, equilibrium quantity would increase. there would be an indeterminate effect on equilibrium price.