You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Myself Carolyn Green from Washington. Could you please help me in flight ticket booking process from IAD to CLT?

ASSISTANT: Sure, kindly mention your travel dates.

USER: Thank you for your response, I want to take off on 01/07 and please confirm my return ticket also on 01/09.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no flights founds with your requirement.

USER: Oh! It's ok no problem.

ASSISTANT: Thanks for reaching us.

USER: Thank you for your information.