You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Daniel Taylor.

ASSISTANT: How can I help you?

USER: My family are planning for a get together in Philip A. Hart Plaza which is in Detroit, please book a flight ticket on 09/25.

ASSISTANT: Please tell your travelling locations with there airport codes please?

USER: Sure, I would like to catch the flight from AUS and land on DTW.

ASSISTANT: Do you want a return ticket too?

USER: Yes, I need a return ticket too on 09/27.

ASSISTANT: I'm really sorry, there are no flights available with your request.

USER: Oh! no problem, I will go by another way. By the way, thank you for checking.

ASSISTANT: Thank you and have a nice day.