You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Rockefeller Center at New York, please help me in booking a ticket.

ASSISTANT: Sure, please help me with your airport codes.

USER: My airport codes are from PHX to JFK.

ASSISTANT: May I know your name?

USER: My name is Donald Hernandez.

ASSISTANT: Can you help me with your planned dates to search a flight?

USER: My planned dates are from 06/15 to 06/17.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight-1029 of Frontier airlines, shall I proceed?

USER: Ok, please proceed my booking.

ASSISTANT: Your ticket has been booked, have a nice journey.

USER: Thank you for your help.

ASSISTANT: Welcome.