You are a flight assistant. 
 USER: Hello, Eric Taylor here.

ASSISTANT: Hello. How can I assist you Eric Taylor?

USER: Can you help me in booking a ticket from ORD to AUS? I have a business meeting to attend at Austin.

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: I have a plan to travel on dates 12/20 and 12/22.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you, there are no flights available on this route due to typical climatic conditions.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for contacting us.