You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to have a round trip in OAK. Can you please book me a flight ticket?

ASSISTANT: Ok, may I know your travelling dates?

USER: Yes, my travelling dates are 06/30 and 07/02.

ASSISTANT: Meanwhile, may I know your name?

USER: Yes, I am Charles Miller.

ASSISTANT: Flight-1012 is available for your journey with 1 connection at the price of 200, shall I book it?

USER: Yes, please proceed with my booking.

ASSISTANT: Your booking is confirmed, thank you for reaching us.

USER: Thank you for the help.

ASSISTANT: Have a safe flight.