You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please reserve me a flight ticket from IAD to DTW?

ASSISTANT: Are you fine with connecting flight?

USER: Yes, I am ok with connecting flight.

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: Sure, my travel dates are from May 16 to May 18.

ASSISTANT: May I know your specifications?

USER: No more specifications.

ASSISTANT: Let me know your name?

USER: Myself Ruth Nelson.

ASSISTANT: Sorry to say, no flight is available for you.

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

ASSISTANT: Thank you for reaching us.