You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your planned trip dates?

USER: My trip dates are Mar 16 and Mar 18.

ASSISTANT: Let me know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any particular timings to travel?

USER: I would like to return in the evening.

ASSISTANT: Any other requirements to be met?

USER: I need a normal cost airline to travel.

ASSISTANT: May I know your good name?

USER: I am Amy Hall.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.