Hi.
user
Hello. How may I guide you today?
assistant
As my exam got postponed, I want to change my existing reservation. Can you help me out?
user
Sure, Wait for a minute. May I know your name please?
assistant
Sure, my name is Edward Walker.
user
I am sorry to say that there is no reservation found.
assistant
That's ok, thank you.
user
Thank you for reaching us.
assistant