Hello.
Hello. How can I help you at this moment?
I am Jack White, want to travel from DTW to PHX. Can you book my ticket?
Sure, I will help you in booking flight ticket. Can you please mention your travel dates for booking flight ticket?
Sure, my travelling dates are from  08/15 to 08/17.
Thank you for providing your travel details. I will put the conversation on hold to check the best flights available in your route.
Ok.
Sorry for the inconvenience no flights available in this route as per your requested dates.
That's fine, I will check with other agency. Anyway, thank you for time.
You are welcome.