You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dorothy Edwards.

ASSISTANT: Dorothy, how may I help you?

USER: Reserve a flight ticket from PHL to AUS.

ASSISTANT: Please provide your trip dates.

USER: The travel dates are 03/06 and 03/08.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry, no flight found.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.