You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Edward Jones.

ASSISTANT: How can I help you today?

USER: I would like to travel from AUS to ORD to meet my friend, can you help me for booking a flight ticket?

ASSISTANT: Sure, I will help you in booking. Can you please share your trip dates?

USER: My travelling dates are 01/09 and 01/11.

ASSISTANT: Sorry, o flights are available on your route.

USER: Ok, please proceed for booking.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.