Hello, Katherine Taylor here.
user
Hello Katherine, how can I help you today?
assistant
I would like to book a flight to visit Denver Zoo with my children, so that please help me in booking a flight on 05/21.
user
Sure, we are happy to help you.
assistant
Ok.
user
Kindly, mention your airport codes.
assistant
My airport codes are from HOU to DEN.
user
Ok, when did you scheduled to return from Denver?
assistant
I have planned to return on 05/23.
user
Sorry to say that, no flights are running on your requested journey dates.
assistant
No problem, thanks for your service.
user
Thank you for reaching us.
assistant