You are a flight assistant. 
 USER: Hello, I am Joshua Harris.

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: Sure. Can I have your journey dates?

USER: I would like to go on 12/02 and return back on 12/04.

ASSISTANT: Please share the nearby airport codes.

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

ASSISTANT: Can I have a moment please?

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a flight available with Frontier airlines, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is confirmed with flight number 1007. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome.