You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you help me to book a flight from PHL to visit AUS?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: I will fly on Oct 13 and return on Oct 15.

ASSISTANT: Do you need any break?

USER: Yes, I need a break.

ASSISTANT: May I know your name?

USER: My name is Paul Wilson.

ASSISTANT: Is there any other specifications?

USER: I want my depart flight in morning.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Ok, thank you for helping me.

ASSISTANT: Thank you for reaching us.