You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Scott Roberts.

ASSISTANT: How may I aid you?

USER: Can you please help me in booking my flight ticket to SEA from DCA to attend a meeting?

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: My departure and arrival dates are Jan 25 and Jan 27.

ASSISTANT: Do you need connecting flight or direct flight?

USER: I need a connecting flight for my journey.

ASSISTANT: Is there any class preferences?

USER: I need economy class.

ASSISTANT: May I know your departing and return timings?

USER: I need to return back in the afternoon.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there are no flights found on your travel dates.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.