You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: have to go Washington DCA in this week for attending a business meeting there. Can you please book a connecting flight for me?

ASSISTANT: Sure, could you please provide me with your starting and returning dates of journey?

USER: My starting journey date is 02/29 and my return date is 01/02.

ASSISTANT: Ok, may I know your source airport code please?

USER: I am planning to go for  Olympic Winter Games from Charlotte CLT.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok.

ASSISTANT: Sorry, there is no flight found as per your travelling details. May I know your name please?

USER: Myself Scott Roberts. Thank you for doing assistance for me.

ASSISTANT: Thank you for consulting us.