You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planing to visit Lake Merritt in Oakland, CA-OAK. Can you please help me for booking the flight ticket?

ASSISTANT: Sure. Can I have your source airport code?

USER: The source airport code is from IL-ORD.

ASSISTANT: Please share your trip dates.

USER: The trip dates are 04/18 to 04/20.

ASSISTANT: Can I have a moment please?

USER: Sure.

ASSISTANT: May I know your name?

USER: Sure, my name is Anthony king.

ASSISTANT: Thank you Anthony. There is a connecting flight available with AA airline, shall I book it?

USER: May I know the price?

ASSISTANT: Yes, it's price is 100.

USER: That's fine, proceed with my booking.

ASSISTANT: Your booking is done with flight number 1023. Happy journey.

USER: Thank you for your help.

ASSISTANT: Welcome. Thank you for opting us.