You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am planning visit Los Angeles, CA-LAX for Christmas shopping, can you please help me in reservation?

ASSISTANT: Can I know your journey details?

USER: My travelling dates are from 12/14 to 12/16.

ASSISTANT: May I know your Origin code?

USER: Ok, my origin airport is New York, NY-EWR.

ASSISTANT: May I know your good name for further process?

USER: I am Charles Martin.

ASSISTANT: We are glad to inform that you have a flight with airline AA and flight number is 1000 and price is 100. Can I proceed?

USER: Yes, please proceed my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you, have a safe journey.