You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please book me a flight ticket from AUS to MCO to meet my family?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: I have planned to travel on July 01st and return on July 03rd.

ASSISTANT: Can I have your name please?

USER: Robert Hall.

ASSISTANT: Do you have any connection preference?

USER: I prefer direct flight.

ASSISTANT: Do you have any other requirements?

USER: Economy class.

ASSISTANT: Robert Hall, no flights has been found on your planned travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.