You are a flight assistant. 
 USER: Hello, Gary King here.

ASSISTANT: Hello, how can I assist you?

USER: I want to meet my cousin on his birthday, can you please book the flight ticket from LAX to JFK?

ASSISTANT: Sure Gary, can I know the travel dates please?

USER: Sure, I will depart on 04/02 and return back on 04/04.

ASSISTANT: There is a flight in Spirit airline with price 100, can I book it?

USER: Sure, please book the ticket.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you very much for your help.

ASSISTANT: You are welcome.