Hello. Myself Alexander Green.
Hello Green, how may I aid you today?
Will you help me in booking the flight ticket from DEN to ORD?
Sure, may I know your dates of journey please?
My preferable journey dates are 10/07 and 10/09.
Please wait for a moment to check for the availability.
Ok, I will wait for your response.
Sorry Green, there is no flight found as per your travelling details.
Ok, not an issue. Thank you for your information.
You are welcome always.