Hello.
user
Hello, how can I aid you today?
assistant
I'm Gregory Lee want to attend my sports event in Denver, can you help me to book a ticket from JFK to DEN?
user
Can you please provide your travelling dates?
assistant
Sure, my travel dates are 04/29 and 05/01.
user
Please wait for a while.
assistant
OK.
user
Thanks for waiting. Unfortunately, there are no flights found.
assistant
OK, thank you.
user
Thank you.
assistant