You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

USER: My name is Timothy Hill, I want to book a flight from IL-ORD to attend meeting with share holders. Can you book a direct flight for me?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will fly on 08/17 and return on 08/19.

ASSISTANT: Kindly provide your destination code.

USER: My destination point is Austin, TX-AUS.

ASSISTANT: Thanks for the information, there is no flight available matching your requirements.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for availing us.