You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

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

ASSISTANT: Sure, I will help you. May I know your travelling dates, please?

USER: My travelling dates are Nov 3 to Nov 5.

ASSISTANT: Do you have any connection limit for your journey?

USER: I need a single connection of flight.

ASSISTANT: May I know about your other specifications, if any?

USER: No.

ASSISTANT: Let me know your good name to proceed further for documentation purpose.

USER: Alexander Evans here.

ASSISTANT: Sorry for the inconvenience, we have not found any flights running on your desired routes as per your specifications.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for choosing us, have a good day.