You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Paul Williams. I am looking for a flight from DFW to AUS, can you help me out?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are from 01/30 till 02/01.

ASSISTANT: Sorry Paul, there are no flights available for your desired dates.

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

ASSISTANT: Thank you for reaching us.