Hello.
user
Hello, how can I aid you?
assistant
I would like to visit Denver Zoo, please help me in booking a ticket from ORD to DEN.
user
Sure, can you share your trip dates?
assistant
My planned trip dates are on July 22 and July 24.
user
Do you have any preferences?
assistant
I would like to return in the evening.
user
May I know your name?
assistant
My name is Amy Clark.
user
Sorry, there is no flight on your given dates.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for reaching us.
assistant