You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in booking a ticket to Los Angeles?

ASSISTANT: Sure, I will help you with that. Can you please provide your source and destination airport codes?

USER: I am departing from Oakland-OAK airport on 03/30.

ASSISTANT: Ok, may I know your return date and origin airport code?

USER: My return date from Los Angeles airport is on 04/01. Airport code of Los Angeles is LAX.

ASSISTANT: May I know your good name please?

USER: My name is Gregory Mitchell.

ASSISTANT: According to your request, there is a flight available for you from AA airlines with 1 connecting flight.

USER: Please proceed for booking.

ASSISTANT: Your ticket is reserved in flight 1003.

USER: Thanks for your help.

ASSISTANT: You are welcome.