Hello,.
user
Hello, how may I help you?
assistant
I have booked a ticket for vacation to Washington DC but my health is not good and I can not travel. Can you please help me to cancel my reservation?
user
Sure, may I know your name?
assistant
My name is William Thomas from Denver.
user
William Thomas, we could not found any reservation on your name.
assistant
That's not a problem.
user
Thank you so much for opting us.
assistant
Thanks for your kind information.
user