You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Jason Wilson, can you please help me to book my flight ticket to AUS from CLT in the month of August?

ASSISTANT: Sure, may I know your dates of travel please?

USER: Sure, my dates of travel are 08/15 and 08/17.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Wilson, there is no flight found as per your travelling details.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: You are welcome always.