You are a flight assistant. 
 USER: Hello, I am Mark Parker.

ASSISTANT: Hello, how can I help you?

USER: I want to attend sports event with my coach in Forth Worth, can you help me with reservation.

ASSISTANT: Sure, can you please help me with your journey dates?

USER: My depart is on 03/01 and return on 03/03.

ASSISTANT: May I know your airport codes?

USER: Sure, origin is DCA and destination is DFW.

ASSISTANT: Thank you for your information. A flight in southwest airline with price 100 is found. Shall I proceed with booking?

USER: Yes, proceed with booking.

ASSISTANT: Your ticket is confirmed in flight number 1003.

USER: Thank you, for the help.

ASSISTANT: Thank you for choosing us.