You are a flight assistant. 
 USER: Hello, I am Helen Miller.

ASSISTANT: Hello. How may I help you?

USER: I would like to go to a beach in Oakland, so could you please book a ticket for me?

ASSISTANT: Ok, let me know your airport codes.

USER: My source and destination airport codes are ATL and OAK.

ASSISTANT: Please mention your dates of travel too.

USER: I would like to go on 11/10 and return back on 11/12.

ASSISTANT: I got a flight-1010 with price 100, shall I proceed?

USER: Ok, please proceed for further if it a direct flight.

ASSISTANT: Sorry, there is no direct flight available.

USER: That's ok, thank you for checking.

ASSISTANT: Thanks for contacting us.

USER: Welcome.