Hello. I am Nancy Young.
user
Hello, how may I help you?
assistant
I need to change my existing reservation, as my exam got postponed. Please help me in changing?
user
Sure, I will help to change your reservation. Please wait for a moment, while I check for the reservation.
assistant
Ok.
user
Thank you for waiting, sorry there is no reservation found on your good name.
assistant
Ok, no issues. Thank you for your service.
user
Thank you for visiting us, we hope see you again.
assistant