You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you for the day?

USER: I planned to meet my cousin in CLT, can you please help me to book a flight ticket from OAK?

ASSISTANT: Sure, we are here to help you. May I know your good name?

USER: I am Paul Miller.

ASSISTANT: Please help me with your journey dates.

USER: I prefer to travel on Sep 15 and Sep 17.

ASSISTANT: Do you prefer a connecting or direct flight?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found from your source on given dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.