You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket from Charlotte CLT to SEA. Can you find a flight ticket for me?

ASSISTANT: Sure, may I know your travel dates?

USER: Ok, my planned trip dates are on Mar 27 and return on Mar 29.

ASSISTANT: Do you have any specifications?

USER: Ok, I need a single connecting flight.

ASSISTANT: Please share me your name.

USER: Ok, I am Nancy Collins.

ASSISTANT: Sorry, there is no flight at this moment.

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for your information.