You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Perez.

ASSISTANT: How may I assist you today?

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

ASSISTANT: Sure, I am oblige to help you. Can you please provide your planned dates of travelling?

USER: I would like to take off on 07/16 and return on 07/18.

ASSISTANT: Ok, may I know your nearest airport codes for booking?

USER: My source airport code is CLT and destination airport code is LGA.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: That's ok, I will find an another alternate way to complete my trip.

ASSISTANT: Thank you for approaching us, have a great day.

USER: Anyways, thank you for the information.

ASSISTANT: Welcome.