You are a flight assistant. 
 USER: Hello,. I am Donna Thomas.

ASSISTANT: Hello, how can I best aid you today?

USER: I want to celebrate beer festivals with my friend's, can you please help me to book a flight from DCA to EWR?

ASSISTANT: Sure, we are gleeful to help you. May I know your travelling dates?

USER: My trip dates are 06/19 to 06/21.

ASSISTANT: Do you need any way station in between journey?

USER: I need a direct flight.

ASSISTANT: Just give me a moment please.

USER: Sure, take your own time.

ASSISTANT: Sorry to notify that there is no direct flight found on your journey route.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for consulting us, have a nice day.