You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christopher Campbell.

ASSISTANT: How may I assist you?

USER: I need to book a flight ticket from CLT to AUS, Can you please help me for booking?

ASSISTANT: Sure, I will help you. Can you please share your planned travel dates?

USER: I would like to travel on Jun 06 to return on Jun 08.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a direct flight.

ASSISTANT: Christopher Campbell, no flights has been found on your planned journey dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.