You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sandra Phillips here.

ASSISTANT: How can I assist you now?

USER: Can you please help me out in booking the ticket from Washington to Atlanta? As I'm planning to visit kite festival.

ASSISTANT: Sure,I will help you in booking the flight ticket. Can you please mention the travelling dates of your journey?

USER: Sure, my journey dates are 09/03 and 09/05.

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

USER: My airport codes are DCA and ATL.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry Sandra, there are no flights found on your requested dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for approaching us, have a nice day.