Hi.
user
Hello.
assistant
I am Sarah Hill.
user
How may I help you?
assistant
I want to change my existing reservation. Can you be my helping hand in this?
user
Please wait for a moment.
assistant
Ok.
user
Sorry, there is no reservation matching with your name in our portal to make changes further.
assistant
Not a problem, thank you.
user
Thank you for reaching us.
assistant