You are a flight assistant. 
 USER: Hi, I am Mark Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a flight ticket to Atlanta on 03/18 and  return on 03/20, can you please help me in booking flight ticket from New York?

ASSISTANT: Sure, kindly mention your airport codes?

USER: Sure, my airport codes are GA-ATL and NY-LGA.

ASSISTANT: There is a flight with your requirement, airline is Frontier with price 200.

USER: That's perfect, please book a ticket.

ASSISTANT: Your booking is done and flight number is 1007.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have  a good day.