You are a flight assistant. 
 USER: Hello. Myself Justin Smith.

ASSISTANT: Hello Smith, how may I assist you?

USER: I want to book a ticket from AUS to CLT to attend sports event, can u help me for booking?

ASSISTANT: Sure smith, can I know your travel dates?

USER: My travel starts from 09/07 to 09/09. Make sure that connection limit is 1 and price limit is 500.

ASSISTANT: Sorry to say smith, we could not find a flight for you.

USER: It's Ok. Thank you for your services.

ASSISTANT: Welcome.