You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Karen Phillips.

ASSISTANT: Karen, how may I aid you today?

USER: I would like to visit Washington, can you help me for booking a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My travelling dates are 06/03 and 06/05.

ASSISTANT: Ok, may I know your airport codes please?

USER: My travelling airport codes are from MCO to DCA.

ASSISTANT: I found a flight for you with Delta airline and it costs you 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been booked with 1005 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: Welcome.