You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Ronald Hernandez here.

ASSISTANT: How may I help you, Ronald?

USER: I'm planning to visit Disney world at Washington, can you please book me a ticket?

ASSISTANT: Sure Ronald, may I know your respective airport codes please?

USER: Sure, my airport codes are DEN and DCA.

ASSISTANT: Please help me with your journey dates.

USER: I'm planning depart from here on 11/18 and return by 11/20.

ASSISTANT: Ronald, I found a flight with Delta airlines available with price 100. Shall I book the ticket for you?

USER: Yes, you can proceed for booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1017.

USER: Thank you so much for booking.

ASSISTANT: Thank you for choosing us, have a safe journey.