You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am  Joseph Robinson. Can you please reserve me a flight ticket which is having it's depart time in the afternoon?

ASSISTANT: Sure, may I know your journey dates?

USER: I have planned to travel on Sept 07th and return on Sept 09th.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your depart time and arrival time?

USER: I would like to depart at afternoon time.

ASSISTANT: May I know your airport codes?

USER: I would like to travel from AUS to EWR.

ASSISTANT: Do you have any other preferences?

USER: I prefer direct flight.

ASSISTANT: Sorry to inform you that, no flights are available with your requests.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.