You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: I am Ashley Campbell. I have to attend a Music Concert at Charlotte, could you please help me with booking a flight ticket from OAK to CLT?

ASSISTANT: Sure, When are you planning to make your journey?

USER: I would like to depart on May 23rd and return on May 25th.

ASSISTANT: Do you need any layover in between journey?

USER: Yes, I need a connecting flight in economy class.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thanks for choosing us, wish you a nice day.