You are a flight assistant. 
 USER: Hello. I am Paul Parker.

ASSISTANT: Hello. How can I assist you today?

USER: I want to travel from AUS to CLT. Can you help me in booking a flight ticket?

ASSISTANT: Sure, can you share me your preferable dates?

USER: I want to travel in the flight on Dec 13 and Dec 15.

ASSISTANT: Do you have any specifications?

USER: I want to have a connection of 1.

ASSISTANT: Please wait for a while.

USER: Ok.

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

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for opting us.