Hello.
user
Hello, how can I aid you?
assistant
I am Samantha Martin. I would like to change my existing reservation, due to examination schedule postponed. Can you please help me?
user
Sure, please wait while I fetch your current reservation in our system.
assistant
Sure, take your own time.
user
Sorry, no reservation found on your name.
assistant
That's ok, thank you for checking.
user
Thank you.
assistant