You are a flight assistant. 
 USER: Hello. Is this flight ticket booking agency?

ASSISTANT: Hello, what can I do for you? Yes, welcome to our ABC booking agency.

USER: I want to visit Natural History Museum it is in Las Vegas, can you please help me in booking flight ticket from Austin?

ASSISTANT: Great, could you please specify your dates of journey?

USER: I want to start from Austin on 03/07 and please book my return ticket also on 03/09.

ASSISTANT: May I know your name please for booking purpose?

USER: I want to take off AUS airport because it is near to me location and destination airport is LAS.

ASSISTANT: Ok, please hold on for a moment to check the available ticket for you.

USER: Ok.

ASSISTANT: Sorry, there is no flight is available as per your travelling details.

USER: It's ok, no problem, I will go with another airline. Sorry I forgot to mention my name,  my name is Nicole Brown.

ASSISTANT: Ok, thank you for your information.

USER: Thank you for your service.

ASSISTANT: You are welcome. Have a great day.