You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please help me out in booking the ticket from AUS to PHX.

ASSISTANT: Sure, can you please provide me with your itinerary travel dates?

USER: My trip dates will be July 15 to July 17.

ASSISTANT: May I know if you have any airline preference?

USER: No.

ASSISTANT: Could you let us know if you have any class preference?

USER: No, but I need a connecting flight.

ASSISTANT: Sure, let me know your name please?

USER: Joshua Martinez is my name.

ASSISTANT: Give me a moment?

USER: Ok. My depart time must be in the evening, please check for it.

ASSISTANT:  Joshua Martinez. I regret to inform that there are no flights on your route with the given dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.