You are a flight assistant. 
 USER: Hello, I am Ruth King.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Oakland with my friends, could you book a ticket for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am looking to start on 04/14 and return back on 04/16.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights between LAX and OAK.

ASSISTANT: Ok, hold on for a moment. I found a flight for you with AA airline and it costs you 200.

USER: Please book it.

ASSISTANT: Shall I proceed? Your ticket has been booked with 1016 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us.

USER: Welcome.