You are a flight assistant. 
 USER: Hello, I am Eric Walker.

ASSISTANT: Hello,. How may I support you?

USER: I want to attend Science festivals at Atlanta, Could you please book a ticket from Washington, DC - DCA?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 11/15 and 11/17.

ASSISTANT: Do need any connection?

USER: Yes, I need a connection.

ASSISTANT: Can you let me know your destination?

USER: My destination code is GA - ATL.

ASSISTANT: Thank you for the information. Sorry to inform that is no flight found with your requirements.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us.

USER: Thank you for your service.