Hi, I am Jonathan Campbell.
user
Hello, how may I help you today?
assistant
I need to travel to Austin to visit University of Texas on 04/25. Can you make a direct flight reservation?
user
Sure, on which date you want to return from Austin?
assistant
My arrival date is on 04/27.
user
May I know your source and destination airport codes?
assistant
Sure, I would like to deviate from Las Vegas LAS to AUS.
user
Ok, please wait for a moment.
assistant
Sure.
user
Sorry, there are no flights found with your given dates.
assistant
Ok, no worries at all. Thank you for your kind service.
user
Thank you for opting us.
assistant