You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to visit Denver, CO-DEN. Can you please help me for booking the flight ticket from Seattle?

ASSISTANT: Sure, may I know your source airport code please?

USER: The source code is from WA-SEA.

ASSISTANT: Please provide me your journey dates.

USER: The travel dates are 11/14 to 11/16.

ASSISTANT: May I know your name please?

USER: Sure, my name is Richard Hernandez.

ASSISTANT: I found a flight in AA airlines available with price 100. Shall I book the ticket for you?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1006.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.