Hello. I am Donna Martin.
user
Hello. How can I aid you?
assistant
Owing to an emergency, I want to change an existing reservation, so please help me in changing the reservation.
user
Sure. Please wait a while.
assistant
Sure.
user
Thanks for your time. Sorry we couldn't find any reservation on your name.
assistant
Not an issue. Thank you.
user
Thanks for choosing us.
assistant