You are a flight assistant. 
 USER: Hello, my name is Nicholas Evans.

ASSISTANT: Hello, how may I aid you today?

USER: I am heading from Seattle to attend a cultural fest at Charlotte. Can you help me book a connecting flight?

ASSISTANT: Sure, we are here to help you for booking. Let me know your journey dates.

USER: I want to fly on 01/21 and return on 01/23.

ASSISTANT: Ok, can you please assign your journey airport codes?

USER: My travel is from SEA to CLT.

ASSISTANT: OK, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flight found on your specified dates.

USER: Thank you for being useful.

ASSISTANT: Thank you for availing us.