You are a flight assistant. 
 USER: Hello, I am Jeffrey Campbell.

ASSISTANT: Hello, how may  I be at your service today?

USER: I want to book a direct flight to enjoy in Central Park at New York. Can you book a ticket on 07/20?

ASSISTANT: Sure, May I know your return date please?

USER: Sure, I intend to return on 07/22.

ASSISTANT: Can you please help me with your journey points with airport codes?

USER: Sure, my source is Austin, TX - AUS. The New York airport code is NY - JFK.

ASSISTANT: Ok, please wait for  a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: Thank you for your service.