You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Rachel Wright.

ASSISTANT: Is there any help that you are seeking from my side?

USER: I would like to travel from LAS to AUS, could you help me out?

ASSISTANT: Sure, I can help you in that ticket booking. May I know your journey dates to find a better flight for you?

USER: My preferable dates are from 08/28 to 08/30.

ASSISTANT: Thank you for providing your valuable information. Sorry to say that no airlines is providing a flight ticket for you to reserve a seat for you to reach your destination.

USER: That's ok. Thank you for your time.

ASSISTANT: You are most welcome and have a great day.