You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I'm Carolyn Hill, planning to visit Washington. Can you please book me a ticket from JFK to DCA?

ASSISTANT: Can I know your travel dates?

USER: My preferable journey dates are from 02/06 to 02/08.

ASSISTANT: The flight 1005 of AA airlines is available on your requested dates. Shall I proceed?

USER: Please book my ticket with this flight.

ASSISTANT: Your reservation has been done.

USER: Thank you for booking my ticket.