You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Pamela Edwards. I am a professor in Houston university and I have to give a seminar in Houston -IAH, so please help me in flight ticket booking from AUS-Austin.

ASSISTANT: Sure, I will help you in booking the ticket.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My travel dates are on 06/08 and arrival back to my home town on 06/10.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Ok, thank you for your search and information.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.