Hi.
user
Hello, how may I assist you?
assistant
Owing an emergence, I want to change my existing my recent reservation. Can you please help me with it?
user
Sure, I will help you. May I know your name?
assistant
My name is Jerry Lopez.
user
Ok, please wait a moment.
assistant
Ok.
user
Sorry, there is no reservation found on  your name.
assistant
Ok, no issues.
user
Thank you for opting us.
assistant
Thanks for the help.
user