You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I need a flight which travels to Washington, IAD from Detroit in January month to attend an event. Can you guide me in booking a flight ticket?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: Sure, my planned journey dates are Jan 31 and Feb 02.

ASSISTANT: May I know your name please?

USER: Sure, my name is Timothy Johnson.

ASSISTANT: Do you have any connection limit?

USER: I need single connecting flight for my journey.

ASSISTANT: Is there any specifications?

USER: I need to return back to my location in the afternoon.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Not a problem, anyways thank you for the information. I will go by another resources to reach my destination.

ASSISTANT: Thank you for reaching us.