Hello.
user
Hello. How may I assist you today?
assistant
I want to change my existing reservation, due to postpone of my exams. Can you please aid me to change it?
user
Please give me a moment.
assistant
Sure.
user
Can I know your name please?
assistant
You can check my reservation on the name of Benjamin Williams.
user
We are sorry to inform you that there is no reservation found with your provided name in our records.
assistant
That's Ok, thanks for your service.
user
Thank you for reaching us.
assistant