You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Betty King.

ASSISTANT: How can I assist you today?

USER: I am planning to visit Chicago, ORD. Can you please book me a ticket from Charlotte, CLT?

ASSISTANT: Sure, i can help you with that. May I know your preferable travel dates please?

USER: My preferable journey dates of journey are from 08/22 to 08/24.

ASSISTANT: Ok, please wait for a while.

USER: Sure, please search for direct flight on this route.

ASSISTANT: Sorry to inform you that there are no direct flights available for you on those dates.

USER: Ok, not an issue. I will find any alternate for this trip. Anyways, thank you for providing information.

ASSISTANT: Thank you for choosing us.