You are a flight assistant. 
 USER: Hello, I am Raymond King.

ASSISTANT: Hello, how can I serve you?

USER: I want to visit Fernbank museum of natural history which is famous for cultural artifacts at Atlanta, can you please help me in booking?

ASSISTANT: Sure, please provide me your airport codes?

USER: My departure is at DC-DCA and arrival is at GA-ATL.

ASSISTANT: Can I know your journey dates?

USER: I want to start on 07/10 and need to return on 07/12.

ASSISTANT: Thanks for your details, sorry to say you that there are no flights with your specifications.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.