Hello. Kenneth Turner here.
Hello, do you need any help from us?
I have planned a trip with my students to enjoy the holidays in water world in the month of Washington, so please book an advance flight ticket for me to IAD from my home town AUS?
I understand  your request and will be happy to help you.
Thank you for considering my request. I am planning to leave my location on 01/31 and please book my return ticket also on 02/02.
The Frontier airline with flight number 1003 is available having fare as 100 and connection as 1.
It's looking perfect to my requirements, I am ok with this. You can proceed with booking.
Fine, your reservation is confirmed.
Thank you for your kind assistance.
My pleasure.