You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist for today?

USER: I am Robert Thompson. I need to attend my friend wedding at Austin, can you please help me to book a flight ticket from CLT to AUS?

ASSISTANT: Sure, I will help you with that Robert Thompson. Can you please provide your planned dates of journey?

USER: Sure, my travelling dates are Jan 10 and Jan 12.

ASSISTANT: Please wait for sometime to check the available flight.

USER: Sure, take your own time.

ASSISTANT: I regret to say this Robert Thompson, there are no flights which travels to your region.

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

ASSISTANT: You are welcome, thank you for reaching us. Hope you have a nice day ahead.