You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of service your looking for?

USER: I would like to visit Austin, could you please book my flight ticket from PHX to AUS?

ASSISTANT: Sure, please share me your travel dates.

USER: I will depart on Feb 26th and return back on Feb 28th.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: My name is William Wright.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I only prefer for a flight with single connection.

ASSISTANT: May I know your class preferences?

USER: I am fine with any class.

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

USER: Sad to hear that. Anyway, thank you for checking.

ASSISTANT: Thank you for reaching us.