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

ASSISTANT: Hello, how may I help you?

USER: I would like to participate in Lowa state fair, held at Orlando. Can you help me to book a flight ticket within the range of 5000?

ASSISTANT: Sure, can you please provide your travel details?

USER: My origin and destination dates are: 08/15 and 08/17. I want to start my journey from TX - AUS, and return at FL - MCO.

ASSISTANT: We are sorry to say there were no flights found on your dates.

USER: Ok, thanks for the information and help.

ASSISTANT: Thank you for reaching us. Have a nice day.