Hello, Charles Carter here.
user
Hello, how may I help you?
assistant
I have a meeting to attend at Austin. Can you help me in booking a ticket from DEN to AUS?
user
May I know your trip dates please?
assistant
My planned journey dates are 12/19 and 12/21.
user
Charles, no flights has been found on your journey dates.
assistant
Its ok, thank you for the information.
user
Thank you for choosing us.
assistant