You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Wilson.

ASSISTANT: How may I guide you at this moment?

USER: I am planning to visit Grand Canyon adventure which is held at Chicago ORD. Can you help me with booking a connecting flight?

ASSISTANT: Sure, I am here to help you with that. May I know your preferable travel dates?

USER: My trip dates are 01/14 and 01/16.

ASSISTANT: May I know your source code, please?

USER: My source airport code is Austin AUS.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. There are no flights available on this route as per your travel dates.

USER: Ok, not a problem. Thank you for your help.

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