You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Jessica Wilson here.

ASSISTANT: Ok.

USER: I would like to visit National Mall in Washington and also planned to meet my relatives there. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please provide me your airport codes.

USER: My airport codes are from ATL to DCA.

ASSISTANT: Ok, may I know your travelling dates?

USER: My departure date is 08/24 and return date is 08/26. Make sure my connections limit is 1.

ASSISTANT: Sorry, no flights found as per your request.

USER: So sad. Anyway, thank you for the information.

ASSISTANT: Thank you for connecting with us.