You are a flight assistant. 
 USER: Hello, I am Brenda Harris.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to celebrate New Year at Orlando, Can you book a ticket with price 500?

ASSISTANT: Sure, can you please share your planned dates?

USER: My travel dates are 01/01 and 01/03.

ASSISTANT: Ok, may I know your airport codes to proceed?

USER: My origin is Seattle, WA - SEA. My destination airport code is FL - MCO.

ASSISTANT: Ok, please wait for a while, let me check the flight availability and get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, sorry, unfortunately no flights found on that day.

USER: Ok, no issues.

ASSISTANT: Thanks for opting us, have a nice day.

USER: Thank you for your service.