Hello.
user
Hello, how may I assist you?
assistant
I am Nicholas Smith. I want to meet my friend at Washington-DC, please help me to book my flight ticket from AUS to IAD.
user
Sure, may I know your planned travel dates please?
assistant
Sure, I will depart on Oct 26th and I have to return back in the evening on Oct 28th.
user
Do you have any particular time for departing and returning?
assistant
I want to return back in the evening.
user
Would you like to prefer direct flight or connecting flight?
assistant
Any flight is fine for me.
user
Which class do you prefer?
assistant
Any class is fine for me.
user
Sorry, there is no flight available in this route.
assistant
Sad to hear that. Anyway, thank you for checking.
user
Thank you for reaching us.
assistant