You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Ronald Lopez here.

ASSISTANT: Glad to meet you Lopez.

USER: I would like to meet my cousin as he is unwell, can you please help me to book my flight ticket from ATL to ATL?

ASSISTANT: Sure, I am happy to aid you in booking. Can I know your preferable travelling dates to proceed further?

USER: Sure, I want to depart on 12/20 and return back on 12/22.

ASSISTANT: Please be on hold for a moment, let me check for the availability of flights as per your travelling details.

USER: Sure.

ASSISTANT: Hawaiian airlines is having a direct flight with a charge 100, shall I book that flight?

USER: Yes, I am comfortable with this flight. You can proceed for booking the ticket.

ASSISTANT: Ok, your ticket has been reserved with the flight number 1002.

USER: Thank you so much for your help.

ASSISTANT: Welcome, have a great day.