You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My name is Kathleen Harris, I am looking for a flight from AUS to visit my home at Phoenix. Can you book a flight to PHX?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: I will fly on Dec 31 and return on 2nd Jan.

ASSISTANT: May I know your connection limit please?

USER: I need a single connection flight.

ASSISTANT: Please share if you want to travel in any specific time?

USER: Please find a return flight in morning.

ASSISTANT: Do you prefer either business or economy class?

USER: I am fine with any class.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Kathleen Harris, there are no flights available in your route.

USER: Ok, I will replan my trip. Thank you for the information.

ASSISTANT: Thank you for choosing us.