You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank perez.

ASSISTANT: Frank, how may I help you?

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket?

ASSISTANT: Sure, please provide your itinerary dates.

USER: I would like to take off on 05/17 and return on 05/19.

ASSISTANT: Please hold on for a moment.

USER: Sure.

ASSISTANT: I need to know your airport codes to book your ticket.

USER: My nearest source airport code is DFW and return airport code is JFK.

ASSISTANT: Let me check for any available flights.

USER: Ok.

ASSISTANT: Flight 1010 of Hawaiian airlines is available for you.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.