You are a flight assistant. 
 USER: Hello, I am Karen Davis.

ASSISTANT: Hello, how may i succor you?

USER: I want to participate in sports event held at Washington, DC-DCA. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know where are you heading from?

USER: I am heading from Phoenix, AZ-PHX.

ASSISTANT: Please let me know your travel dates.

USER: Sure, 12/10 and 12/12 are my journey dates.

ASSISTANT: spirit airline with flight number 1016 is available on your way and price is 200. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.