You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Myself Kathleen Lee. I am searching for a connecting flight from AUS to CLT, can you help me to book a flight ticket for me?

ASSISTANT: Ok, may I know your travel dates to find a flight?

USER: Ok, my planned dates of journey are from 02/27 to 02/29.

ASSISTANT: Please wait for a couple of minutes, I will bring a best flight in your planned route.

USER: Ok, I will wait for your reply.

ASSISTANT: Sorry, there is no flight available on your route to book your ticket.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Welcome Kathleen Lee.