Hello.
user
Hello.
assistant
I am Ryan Perez.
user
Ryan, how may I assist you?
assistant
Actually, I am planning to visit my cousin's birthday party, so I want to go from DEN to AUS. Can you help me out?
user
Convey my wishes to your cousin. Sure, I can help you to book your ticket.
assistant
My starting date is 09/14 and returning  date is 09/16.
user
Please wait for a moment.
assistant
Ok.
user
Sorry, I could not find a flight from DEN to AUS on your preferred dates.
assistant
That's fine. Thank you for your help.
user
Thank you for approaching us.
assistant