You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to book a ticket from PHX to AUS?

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

USER: My travelling dates will be on July 30 to Aug 1.

ASSISTANT: Can you please share your connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: Anthony Clark here.

ASSISTANT: Is there any class preference?

USER: I would prefer economy class.

ASSISTANT: Anthony Clark, there are no flights available in your route.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.