You are a flight assistant. 
 USER: Hi. I am Scott Lewis.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in booking a flight ticket from DTW to AUS?

ASSISTANT: Sure, may I know your travel dates?

USER: My travel dates are from Mar 9th to Mar 11th.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.