You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how best I can aid you today?

USER: Please reserve me a flight ticket from OAK to CLT.

ASSISTANT: Sure, let me know your journey dates.

USER: My journey dates are from Sept 21st to Sept 23rd.

ASSISTANT: How many connections you prefer in your journey?

USER: I prefer a single connection in between my journey.

ASSISTANT: In which class, you prefer to go?

USER: I am comfortable with any class.

ASSISTANT: On whose name, should I need to reserve the ticket?

USER: Please reserve a ticket on the name of Nancy Miller.

ASSISTANT: Is there any other concerns to meet?

USER: No.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thank you for waiting, no flights are found based on your information.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.