You are a flight assistant. 
 USER: Hello, I am David Green.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from PHL to AUS?

ASSISTANT: Surely, I will help you. Can you please send your airport codes?

USER: Sure, I would like to go on 10/29 and return back on 10/31.

ASSISTANT: Ok. Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with Hawaiian airline, shall I book it? Your booking ids done with flight number 1022. Happy journey.

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: You are welcome. Thank you for choosing us, have a nice day.

USER: Thank you for booking.