You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Gary Edwards, I want to book a flight ticket to PA-PHL to attend a party, help me in booking my flight ticket form TX-AUS.

ASSISTANT: Sure, we are here to help you. Let me know when you are willing to travel?

USER: I want to start on 01/05, my return date will be 01/07.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your requested details.

USER: Its ok, I will search other alternative.

ASSISTANT: Ok, Thanks for approaching us.

USER: Thank you for your effort.