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

ASSISTANT: Hello, how may I assist you today?

USER: I am in need of emergency so can you please book a ticket with a direct flight to Los Angeles, CA-LAX?

ASSISTANT: Sure, may I know your travelling dates?

USER: I would like to fly out on 08/24 and return on 08/26.

ASSISTANT: To proceed booking I need your other airport code.

USER: My source point is CO-DEN.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no direct flight available.

USER: Ok, no problem. Thank you for sharing the information.

ASSISTANT: Thank you.