Hello.
user
Hello, how may I aid you today?
assistant
I am Edward Lopez. Can you help me in booking my flight ticket from IAD to AUS?
user
Sure, please share me your trip dates.
assistant
My trip dates will be May 9th to May 11th.
user
Do you want to travel in connecting flight or direct flight?
assistant
I need a connecting flight.
user
 Please share if you want to travel in any specific time?
assistant
My return flight should be in the afternoon.
user
Do you like to go with a economy class or business class?
assistant
I am ok, with any class.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Its ok, thank you.
user
Thank you for reaching us.
assistant