You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need to attend a sports event at Austin, TX-AUS. So, Can you help me in reservation?

ASSISTANT: Sure, I am here to help you. Can you please provide me your journey dates and destination airport?

USER: I have to start on 08/24 from Houston, TX-IAH and should return on 08/26.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: I will check the availability and revert you. Sorry for the inconvenience, there were no flights on your preferred dates.

USER: Ok, Thanks for your information.

ASSISTANT: May I know your name please?

USER: My name is Andrew Scott.

ASSISTANT: Ok, thank you for reaching us, have a good day.