You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning o book a flight ticket to Orlando, can you please help me in booking a flight ticket from Washington?

ASSISTANT: May I know your trip dates?

USER: My planned dates are Oct 2 and Oct 4 respectively.

ASSISTANT: Do you prefer any connections?

USER: I need a direct flight.

ASSISTANT: Please share your airport codes?

USER: My airport codes are DCA and MCO.

ASSISTANT: Do you prefer any specifications?

USER: I am looking for business class.

ASSISTANT: No flights found on your route.

USER: Not an issue, thank you for checking.

ASSISTANT: May I know your name?

USER: Dorothy Mitchell here.

ASSISTANT: Thank you.