You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I am Sharon Robinson. I want to attend business meeting with my clients at Houston, TX - HOU. Can you please help me with book a direct flight?

ASSISTANT: Sure, could you please mention your travel dates?

USER: My travelling dates are 04/07 to 04/09.

ASSISTANT: Ok, from which airport you are willing to start your journey?

USER: I would like to start my journey from Austin, TX -AUS.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights available at your requested route due to bad weather conditions.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.