You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

USER: I am Patrick Hall, can you find a direct flight for me?

ASSISTANT: Sure, I will help you with this.

USER: Thanks.

ASSISTANT: Can you please provide your preferable airport codes?

USER: Fine, locations are from AUS to IAD.

ASSISTANT: May I know your travelling dates, please?

USER: Ok, my trip dates are from Jan 09 and Jan 11.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: There is a connecting flight available in Jet Blue airline with a fare of 100. Shall I book it?

USER: I need a direct flight, as I said before.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: It's ok, thanks for your information.

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