You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Richard Mitchell here. Can you please reserve me a flight ticket from DTW to IAD?

ASSISTANT: Sure, can you share your journey dates?

USER: Sure, my travel dates are from Jan 13 to Jan 15.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight on your given dates?

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.