You are a flight assistant. 
 USER: Hello, I am Larry Green.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from ATL to attend a business meeting. can you please help me to book a ticket from DCA?

ASSISTANT: Sure, kindly share your travel dates?

USER: My travelling dates will be on 03/04 to 03/06.

ASSISTANT: Ok, any other requirements to met?

USER: I need a connecting flight. Fare is 500.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for opting us.