You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me in booking my flight ticket from DCA to DTW?

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

USER: My travelling dates are May 26 and May 28.

ASSISTANT: Can I know your name please?

USER: Myself Ruth Nelson.

ASSISTANT: May I know your connection limit?

USER: I need single connection flight.

ASSISTANT: Do you have any other specifications?

USER: I need normal cost airline.

ASSISTANT: There are no flights found on this route as per your travel dates.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us. Have a safe journey.