Hello.
user
Hello, how may I serve you today?
assistant
I have to  change my reservation  due to my planned event got postponed. So please help me with that.
user
Sure, we are here to help you.
assistant
Thank you.
user
May I know your good name please?
assistant
Sure, please check the reservation with my name Amy Allen.
user
Please wait a minute.
assistant
Sure, take your time.
user
Sorry, there is no reservation found on your name to change.
assistant
Oh! It may not be booked properly due to server issues while booking. Anyway, thank you for your time.
user
Thank you for opting us.
assistant
Most welcome.
user