You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Please book a ticket from SEA to CLT to visit Flower festival.

ASSISTANT: Sure, can you share me your travelling dates?

USER: My travelling dates are Apr 7 and Apr 9.

ASSISTANT: Do you have any connection limit?

USER: I want single connected flight.

ASSISTANT: Is there any other specifications?

USER: I prefer economy class.

ASSISTANT: Can I know your good name?

USER: Sure, I am Steven Hill.

ASSISTANT: Sorry, no flights are found on your travelling dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.