You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Brenda Young here.

ASSISTANT: What service that you are looking from our agency?

USER: I would like to book a ticket from LAS to AUS, can you please help me with that?

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

USER: The travel dates are from 02/28 to 03/01.

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

USER: Ok sure.

ASSISTANT: Sorry no flights available in this route as per your requested dates.

USER: That's ok, thank you for your help.

ASSISTANT: You are welcome.