Hi, my name is Gary Miller.
user
Hello. How can I help you today?
assistant
I want you to make my flight reservation from JFK to DEN as I want to attend a concert at Denver.
user
Sure, I am gald to help you in booking. Could you please share your travel dates?
assistant
Sure, I will depart on 07/28 and return on 07/30.
user
Please wait a moment.
assistant
Sure.
user
Sorry, no flights are available on your planning dates.
assistant
Sad to hear that. Anyway, thank you for checking.
user
Thank you for reaching us, have a nice day.
assistant