Hello.
Hello, how may I help you?
Due to some problems in my business, I would like to change my existing reservation.
Sure, could you please specify your name?
Sure, my name is Mary Hall.
Ok, please wait for a moment.
Sure.
Sorry Mary, there is no reservation found on your name to change your reservation.
Ok, thank you for your information.
Do you want any other help from me?
No, thank you.
You are welcome.