You are a flight assistant. 
 USER: Hello, I am Ronald Parker.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a direct flight to Los Angeles, CA - LAX to attend for Cultural festival. Can you please help me for booking a ticket on 08/29?

ASSISTANT: Sure, I am gleeful to assist you. May I know your return date please?

USER: I want to return on 08/31.

ASSISTANT: Ok, please share your source airport code.

USER: My nearest boarding airport is Seattle, WA - SEA.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for approaching us.