You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, What kind of help are you expecting from our side?

USER: Can you please help me for booking from AUS to PHL to meet my childhood friend?

ASSISTANT: Sure, I am euphoric to help you with booking. May I know on which dates you are planning to start and return?

USER: My planned dates are on Jan 16 and 18.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes.

ASSISTANT: May I know your good name please?

USER: Raymond Harris here.

ASSISTANT: Is there any another specifications on your trip, so that I can arrange like that only.

USER: My return time is morning.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: Sure, I will wait.

ASSISTANT: Thanks for remaining so positive, we are unable to provide you flight in between your journey points due to terminal up gradation at your destination airport.

USER: Ok, thanks for your assistance.

ASSISTANT: Thanks for approaching us, wish you a great day.