You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you find a direct flight for me from EWR?

ASSISTANT: Sure, may I know your planned dates to travel?

USER: My travelling dates are from 04/17 to 04/19.

ASSISTANT: Can you please share your destination airport code?

USER: My destination airport code is DCa.

ASSISTANT: Sorry, there is no flight available on on your requested dates. May I know your good name please?

USER: Myself Andrew Collins.

ASSISTANT: Thank you for contacting us.

USER: Most welcome.