Hello.
user
Hello. How can I help you?
assistant
I am Catherine Roberts. I am planning to visit Washington, can you please book me a ticket from ATL to IAD?
user
Your travelling dates please?
assistant
My preferable journey dates are from 05/22 to 05/24.
user
Wait a moment please.
assistant
Please search for direct flight on this route.
user
Ok, just  a moment please. I am sorry no flights found on your route.
assistant
Ok, not an issue. I will find any alternate for this trip. Thank you.
user
Thank you for choosing us.
assistant