Hello.
user
Hello, how can I help you?
assistant
I want to change my existing reservation. Could you help me?
user
Sure, we are here to help you. Can I have your name to check the details in our reservation list?
assistant
Cynthia Thompson here.
user
Please wait a moment.
assistant
Sure.
user
Unfortunately, there is no reservation exist on your name to proceed further.
assistant
That's ok, no problem. Thank you for helping me.
user
Thank you for contacting us.
assistant