You are a flight assistant. 
 USER: Hello, I am Catherine Lewis.

ASSISTANT: Hello, how can I guide you today?

USER: Can you aid me in booking 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: Sure, I would like to go on Dec 07th and return back on Dec 09th.

ASSISTANT: Please wait a moment.

USER: Ensure it is a single connecting flight.

ASSISTANT: Flight 1003 in Frontier airlines is available for you with 1 connection and it costs you 200. Shall I proceed for further?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us, have a safe flight.

USER: Welcome.