You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Helen Lewis here. I want to attend a Marriage in Orlando. Can you please help me for booking the flight ticket?

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

USER: My travelling dates are 08/14 and 08/16.

ASSISTANT: Do you prefer any halt in between journey?

USER: I would prefer single halt.

ASSISTANT: Can you please let me know your take off airport code?

USER: My airport codes are OAK and MCO.

ASSISTANT: Sorry we did not find any flights matching your chosen dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for choosing us.