You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Virginia Carter. I want to travel on these days 08/07 and 08/09. Can you find a flight ticket for me?

ASSISTANT: Sure, I will help you with that. Can you please share your airport codes to proceed further?

USER: Sure, my airport codes are DCA to ORD.

ASSISTANT: Wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no flight found.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for contacting us.