You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Charles Scott.

ASSISTANT: How may I aid you today?

USER: I need to book a flight ticket from AUS to DEN, can you please help me for booking?

ASSISTANT: Sure, please mention your travelling airport codes?

USER: I would like to travel on 07/23 to return on 07/25.

ASSISTANT: Please hold a moment, let me check the availability.

USER: Sure.

ASSISTANT: There is a flight with one connection and the price is 300 in Hawaiian airlines, can I proceed with the booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been reserved with the flight number 1000.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching our service.