Hello. I am Catherine White.
user
Hello, How can I help you?
assistant
I would like to book a flight ticket from Austin TX-AUS to Denver CO-DEN. Can you please help me in booking?
user
Sure, Please wait a minute. Please help me with your travel dates.
assistant
My depart will be on 12/27 and arrive on 12/29.
user
Sorry, No flights found with your preferable dates.
assistant
Ok, no issues.
user
Thank you for opting us.
assistant
Thank you for your kind service.
user