You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Kevin Williams. Could you please help me in flight ticket booking process from DTW to DCA?

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

USER: Thank you for your response, I want to take off on Oct 01 and book my return ticket also on Oct 03.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I want a direct flight to Washington.

ASSISTANT: Do you have any other requirements.

USER: I want to take off in morning time.

ASSISTANT: Sorry, there is no flight available in this route.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.