You need to book a flight with scheduled start and end dates and book a round-trip flight. This is easy and can be done by following the steps below.

Please log in to Delta's official website and enter your travel details.
Meanwhile, a round-trip box will appear at the top of the screen.
Select the start and end dates, and the number of passengers, and press Enter.
All flights to the destination within the specified time will flash on the screen. All you need to do is choose a flight to your liking and pay for it, and you're done! This completes the round-trip reservation. You can try Delta's booking management options to manage your bookings as planned.

This is how you can make Hawaiian Airlines Reservations for round trip.

To anyone who has financial problems and a great desire to travel, I want to advise a reasonable and economical approach to travel. Pay attention to the article about travel with a minimum budget and you will understand that it is not necessary to spend thousands of dollars to go to another country for new experiences.