You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Katherine Bakerr. I am planning to visit DCA to meet my friend, can you please find a flight from ATL?

ASSISTANT: Sure, I will help you ton book a flight. Can you please share me your travelling dates?

USER: My planning dates are from 03/01 till 03/03.

ASSISTANT: Sorry, there is no flight is available for you on your route.

USER: It's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.