Hello.
user
Hello, how may I help you today?
assistant
I am Michael Williams. I would like to change my reservation as I am leaving for business meet, can you please help me out?
user
Sure, I am here to help you with this. Please wait for a mean while.
assistant
Sure.
user
Sorry Williams, there is no reservation found under your name to change it.
assistant
Ok no problem, thank you for your services.
user
You are welcome always.
assistant