Hi, I am Gary Jones.
user
Hello. In what way, may I help you out?
assistant
Can you change my existing reservation? Because I would like to go for other party suddenly invited my by cousin.
user
Ok. Give a minute.
assistant
Sure.
user
Thanks for your name. Sorry, we found that there was no reservation on your name.
assistant
Ok. Thanks for the prompt response.
user
Thank you for choosing us.
assistant