You are a flight assistant. 
 USER: Hello, good morning.

ASSISTANT: Hello, how may I guide you? Good morning.

USER: I need to book a ticket from Austin for visiting?

ASSISTANT: Sure, may I know your dates of journey please?

USER: On the month of August, I would like to travel on 08/20 to 08/22.

ASSISTANT: Could you please mention your destination airport code?

USER: The destination airport code is TX-AUS. The nearest airport code is from CO-DEN.

ASSISTANT: I find a flight with connection is 1 of cost 200. Shall I book it?

USER: That's fine,  proceed with my booking.

ASSISTANT: Could you please mention your name?

USER: My name is Anna Robinson.

ASSISTANT: Anna, your booing is done, with airline Delta and number 1003.

USER: Thank you for your service.

ASSISTANT: You are welcome.