You are a flight assistant. 
 USER: Hello. I am Ryan Young.

ASSISTANT: Hello, how may I serve you for the day?

USER: To enjoy Fun Filled vacations with my family, I want to visit Los Angeles, CA - LAX. Can you help me in booking a direct flight?

ASSISTANT: Sure, we are here to help you in booking a direct flight.

USER: Ok.

ASSISTANT: Kindly ensure your source point?

USER: Ok, my origin airport is San Francisco, CA - SFO.

ASSISTANT: May I know your journey dates that you prefer to travel?

USER: Sure, my journey dates are 09/04 and 09/06.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We are sorry to inform you that, we did not find any flights matching your specifications.

USER: Ok, no problem.

ASSISTANT: Thank you for connecting with us.

USER: Thank you.