Hello. I am Sarah Rodriguez.
user
Hello, how may I address you?
assistant
I need to change my existing reservation, Can you help me for change reservation please?
user
Sure, please wait for a minute I will revert you with the current status.
assistant
Sure.
user
Sorry to inform that there is no reservation found with your name.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for choosing our service.
assistant