You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please help me to book a flight ticket from DCA to DTW?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My journey dates are from Feb, 06 to Feb, 08.

ASSISTANT: Ok, may I know your name?

USER: Stephanie Hill.

ASSISTANT: Do you have any specification?

USER: I need a direct flight only.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.