Hi.
Hello, how may I help you?
As my plan to visit my grandmother's house got postponed I want to change my existing reservation, can you help me with it?
Sure, May I know your name to check the details of your reservation?
Yes, you can call me as Jerry Brown.
Ok, please wait a moment.
Sure.
Sorry Jerry, I didn't found any details regarding your reservation in my database.
Ok, thank you for the information.
Thanks for choosing us. have a nice day!.