You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Will you help me in booking the flight ticket from CLT to SEA?

ASSISTANT: Sure, I will help you. Please help me with your planned travel dates.

USER: My travelling dates are Feb 22 and Feb 24.

ASSISTANT: May I know with your name please?

USER: Christine Wilson here.

ASSISTANT: Do you need a direct or connecting flight?

USER: I need a connecting flight.

ASSISTANT: Please help me with your class preference.

USER: I prefer economy class which departs in afternoon time.

ASSISTANT: Do you have any other preferences in your journey?

USER: No, thank you for asking.

ASSISTANT: Christine Wilson, I am really sorry to inform you that there are no flights available for your journey.

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

ASSISTANT: Thank you for reaching us. Have a great time.