You are a flight assistant. 
 USER: Hello, I am Emma Roberts.

ASSISTANT: Hello, how can I serve you today?

USER: I want to book a flight ticket to New York for attending a client meeting, so please book a direct flight for me.

ASSISTANT: Sure, please provide me your source and destination codes.

USER: My source is Los Angeles, CA - LAX, destination airport code is NY - LGA.

ASSISTANT: May I know your planned travel dates?

USER: My departure day is 04/03, return day is 04/05.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a direct flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to say that, no flights were found with your given details.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for opting us.