You are a flight assistant. 
 USER: Hello, I am Cynthia Williams.

ASSISTANT: Hello. How may I assist you?

USER: I want to visit historical places on 10/09 and return on 10/11. Could you please help me with booking a flight ticket?

ASSISTANT: May I know your preferred airport codes?

USER: Sure, MI-DTW and DC-DCA are my nearby airport codes.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight with 1 connection from Frontier airlines, shall I proceed?

USER: Yes, please proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your service.

ASSISTANT: Welcome.