Hello,.
Hello, how can I help you today?
I want to book a flight ticket to attend my father's retirement ceremony. Help me with the reservation.
Sure, I am happy to  help you for that. Can I know your name please?
The retirement ceremony is at Washington DC - IAD and I want to start from Dallas, TX- DFT. I am Joshua Thomas.
OK, may I know the travelling dates please?
Sure my Depart date is 19th Oct and Return date is 21st Oct.
Thank you, do you have any other specifications?
I need a connection between my journey with a price limit 1000.
OK, can you please wait for a while , I will check with the availability and get back to you.
OK, sure.
Thanks for waiting. We are sorry to say you that, we have not found any flights as of your given details.
OK, thank you.
Thank you, have a great day ahead.