Hello.
user
Hello, how may I be at your service today?
assistant
Can you please help me to change my existing reservation?
user
Sure, I can change your reservation right now. Before that I need to know your good name please?
assistant
Myself Brenda King.
user
 Sorry, there is no reservation matching with your name in our portal to make changes further.
assistant
Ok, no problem. Thank you for checking.
user
Thank you for choosing us.
assistant