Hi.
user
Hello, how can I be your  helping hand today?
assistant
Owing an emergence, I want to change my existing reservation. Can you help me with it?
user
Sure, it's my pleasure to help you. Please wait for a while.
assistant
Sure.
user
To check reservation, I need your name, please provide your name?
assistant
My name is Rachel Gonzalez.
user
OK,. We are sorry to notify that, we did not find any reservation with your name.
assistant
Ok, no issues.
user
Thank you for reaching us. Have a great day.
assistant
Thanks for the help.
user