You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Amanda Scott here.

ASSISTANT: How can I help you Scott?

USER: Can you find a direct flight from LAX to DCA?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my trip dates are 11/26 and 11/28.

ASSISTANT: Sorry, I did not find any flight with your dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for opting our service.