Hi.
user
Hello. How can I assist you at this moment?
assistant
John Hernandez here. I am planning to travel from DEN to ATL, can you help in booking a flight for me?
user
Sure, I will help you with that. Can I have your travel dates please?
assistant
My adte of travelling is on 12/02 to 12/04.
user
Please wait a moment and I will inform you flight details soon.
assistant
Sure.
user
Sorry  John Hernandez, no flight is available to you on your dates.
assistant
That's ok. Thank you for your help.
user
Thank you for choosing us, have a great day.
assistant