You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to travel from OAK to CLT, can you please help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you with that flight ticket booking. May I know your travelling dates, please?

USER: Sure, my journey dates are Feb 02 and Feb 04.

ASSISTANT: Can I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Which class do you prefer either economy or business?

USER: I am comfortable to travel in any class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Mary Adams.

ASSISTANT: Sorry to say that, there are no flights found on this route as per your travel dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.