You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Stephen Lopez. Can you please search a flight on the dates 08/25 and 08/27?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your airport codes please?

USER: My preferable airport codes are from AUS to CLT.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time but check for the flight with connection limit 1.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for choosing us.

USER: Welcome.