You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Myself Samuel Jackson. I am planning my holiday trip to visit Washington to meet my colleagues. Can you please help me in reserving the ticket from DTW to DCA?

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

USER: I am willing to leave on June 11 and again I will return back on June 13.

ASSISTANT: Do you need a halt in between your journey?

USER: I am planning to travel with single connection flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specifications.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Not a big problem, I will choose an other way to reach my destination.

ASSISTANT: Thank you for reaching us.

USER: Thank you very much for your kind information.