You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Please book me a ticket from AUS to CLT to meet my family.

ASSISTANT: Sure, I am here to help you with this. Can you please provide your journey dates?

USER: I have planned to travel on Nov 24th and return on Nov 26th.

ASSISTANT: Do you have any connection limit preference?

USER: I prefer connecting flight.

ASSISTANT: May I know your airline preference?

USER: I am ok with any airline.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your good name please?

USER: Myself Michelle Smith.

ASSISTANT: Michelle Smith, there are no flight services are available on this route on your provided dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.