Hello. I am Andrew Mitchell.
user
Hello, how may I support you today?
assistant
I need to book a ticket to meet my sister who is participating in Batmen-ton  on 06/29. Could you please help me in booking a ticket on 06/28?
user
Sure, where will you start your journey?
assistant
I like to  start from Denver DEN.
user
May I know your landing point?
assistant
My landing point is Atlanta ATL.
user
When would you like to return ?
assistant
I intend to return on 06/30.
user
Do you have any other specifications?
assistant
Yes, I need a direct flight to reach my destination.
user
Sorry to inform that no direct flights are available with your requested details.
assistant
No worries, thank you for your valuable information.
user
Thanks for availing us.
assistant