Hello,. I am Virginia Roberts.
user
Hello Roberts, how can I help you today?
assistant
I want to book a flight ticket to go for a Grand Canyon Adventure in Philadelphia, PA - PHL. Can you please make a flight reservation from Denver, CO - DEN?
user
Sure, I am here to help you with that.
assistant
Thank you.
user
On which dates you want me to book your ticket?
assistant
My depart date is on 03/05 and return date is on 03/07.
user
 Sorry to notify that, there is no flight found on your requested dates.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for reaching us.
assistant