You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Michael King.

ASSISTANT: How may I help you?

USER: I have a meeting to attend at Washington with President. Can you help me in booking a ticket from LAX to IAD?

ASSISTANT: Sure, please help me with your journey dates.

USER: My planned journey dates are 12/04 and 12/06.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: King, no flights has been found on your journey dates.

USER: Its ok, I will find other way out. Thank you for the information.

ASSISTANT: Thank you for choosing us.