Hi. I am Alexander Perez.
user
Hello, how may I serve you today?
assistant
I want to book a direct flight ticket to attend an emergency case at TX-AUS. Can you help me with this booking?
user
Sure, can you please forward your journey dates?
assistant
04/10 and 04/12 are my travelling dates.
user
May I know your boarding  point please?
assistant
DC-DCA will be my source airport code.
user
Ok, please wait for a while.
assistant
Ok.
user
Sorry we did not find any flights matching your specifications.
assistant
No issue. Thank you.
user
Thank you for reaching us.
assistant