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