You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket from SFO to CLT, can you help me in booking a flight ticket?

ASSISTANT: Sure, please share your planned travel dates?

USER: Sure, my scheduled dates are Sep 13 and Sep 15.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer maximum one connection.

ASSISTANT: Any other preferences?

USER: I would prefer business class.

ASSISTANT: Can I have your name please?

USER: Sure, Michael Young here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.