Hello,.
user
Hello, how can I assist you?
assistant
I want cancel my  existing reservation and want do new reservation. Will you help me?
user
Sure, May I know your name please?
assistant
Yeah. My name is Jack Thomas.
user
Ok, wait.
assistant
OK.
user
There is no reservations found on your name. Thanks for choosing us.Have a good day.
assistant
No problem. Thank you for your help.
user