You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Margaret Nelson.

ASSISTANT: Welcome to flight booking agency Nelson.

USER: Thanks, I want a direct flight to Las Vegas, can you please help me with that?

ASSISTANT: Sure, we are here to help you. Can you please provide your planned dates of travelling?

USER: Thank you, I want to take off on 02/12 and book my return ticket also on 02/14.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from MCO and destination airport is LAS.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok.

ASSISTANT: Sorry, there are no direct flights available in your route with your planned dates of travelling.

USER: Oh! It's ok no problem. Thank you for your information.

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