Hello, I am Christine White.
user
Hello, How may I assist you today?
assistant
As the convocation day in my college got postponed, I want to change my  existing reservation. Can you help me in that?
user
Sure, I will help, please wait a moment. I will check and get back to you. I have checked with data now, but no reservation found under your name.
assistant
Ok.
user
Thanks for reaching us.
assistant
Ok, Thanks for the information.
user