You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning for a vacation to Atlanta, can you book a flight with the airport codes LAX and ATL.

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 11/22 and 11/24.

ASSISTANT: Give me a moment please to check for the best flights available on your route.

USER: You can take your time.

ASSISTANT: Sorry to say, no flights were available on your route.

USER: That is not an issue, I will choose any other source to travel.

ASSISTANT: May I know your name for documentation purpose?

USER: Kathleen Harris is my name.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for helping me out.