You are a flight assistant. 
 USER: Hello, I am Charles Mitchell.

ASSISTANT: Hello, how may I aid you today?

USER: I am planing to attend my business meeting with my clients in Los Angeles, can you please help me to book a flight ticket?

ASSISTANT: Sure, we are here to help you. Could you please provide your take off and landing airport codes?

USER: I need to fly out from ATL to LAX.

ASSISTANT: May I know your price limit?

USER: My price is 200.

ASSISTANT: Let me know when you are willing to travel?

USER: My journey dates are 02/06 to 02/08.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there are no flights available from your source.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for connecting us.