You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Patrick Robinson.

ASSISTANT: Nice meeting you Patrick.

USER: I would like to book a ticket with direct flight to Phoenix, can you please help me out?

ASSISTANT: Sure, I will help you. Can you please provide your travelling dates?

USER: I am travelling on these dates 08/02 and 08/04.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I am flying from AUS to PHX.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no direct flights available with your requested dates of travelling.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us, have a great day.