You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I have to attend a party in San Francisco, please provide me a plane ticket from Charlotte.

ASSISTANT: Sure, may I know your name please?

USER: I am happy for your quick response. Myself Nicholas Carter.

ASSISTANT: May I know your travelling airport codes please?

USER: The genesis and terminus airport codes are CLT and SFO.

ASSISTANT: May I know on which dates you are willing to travel?

USER: I am willing to travel in the dates of May 15 and May 17.

ASSISTANT: May I know your connection limit please?

USER: I prefer a single stop over flight for my journey.

ASSISTANT: May I know your class preference please?

USER: I prefer to travel in a business class flight.

ASSISTANT: Sorry Carter, there is no flight found as per your required business class.

USER: It's ok, not a problem with that. Anyways thank you for searching the flight.

ASSISTANT: Thank you for reaching us.