You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Myself Stephen Robinson. I would like to celebrate my birthday at Charlotte, will you help me in booking the flight ticket from SEA to CLT?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are 11/03 and 11/05.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, I will wait for your response.

ASSISTANT: Stephen, I am sorry to inform you that there is no flight available at your request.

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

ASSISTANT: Thank you for reaching us, have a great day.