You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Christine Lee. I am planning to visit Boston to meet my father, can you please help me in booking a flight ticket from Los Angeles?

ASSISTANT: Sure, can you please tell me your travelling dates, so I can proceed with the information.

USER: My planning dates are from Feb 25 till Feb 27.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: Sure, my travelling airport codes are LAX and BOS.

ASSISTANT: Frontier airline is providing flight with price 100, shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with flight -1003.

USER: Thank you for booking.

ASSISTANT: My pleasure.