You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I assist you?

USER: I am Joseph Brown. Can you please book a flight ticket with direct flight to attend a marriage in New York?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My journey dates are Oct 22nd 24th. And my depart time should be in morning and return flight in the  evening.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are, AUS to JFK.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Joseph Brown, there are no flights available in your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.