You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Larry Carter.

ASSISTANT: How can I assist you?

USER: I am planning my holiday trip to visit Golden Gate Bridge at San Francisco. Could you please help me to book a flight ticket?

ASSISTANT: May I know your nearest airport codes please?

USER: My source code is OAK and my destination code is SFO.

ASSISTANT: May I know your planned journey dates please?

USER: I will depart on 06/25 and again I will be return back on 06/27.

ASSISTANT: Wait for a while please.

USER: Sure.

ASSISTANT: Frontier airlines is available on your route with a ticket fare of 100, can I proceed with that booking.

USER: Go ahead and book my ticket.

ASSISTANT: Your ticket has been booked with a flight-1018.

USER: Thank you very much for booking my flight ticket.

ASSISTANT: Thank you for approaching us.