You are a flight assistant. 
 USER: Hi. I am Angela Lopez.

ASSISTANT: Hello. How can I assist you?

USER: I am looking for a flight from ORD to AUS, can you aid me in booking the flight ticket?

ASSISTANT: Sure, we will search a flight for you. May I know your travelling dates?

USER: My airborne will be on 02/06 and recur will be on 02/08.

ASSISTANT:  Do you have any preference?

USER: I need a 1 stop over flight.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry to inform you that no flights  were available on your travel dates.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT:  Thank you for availing us.