You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: Can you please help me in booking a flight ticket from Charlotte, CLT to Chicago, ORD?

ASSISTANT: Sure, could I have your journey dates, please?

USER: My journey dates are from Feb 27 to Feb 29.

ASSISTANT: May I know your good name?

USER: My name is Anna Allen.

ASSISTANT: Do you have any specifications?

USER: I need a lay by in between journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your requirements.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.