Hello.
user
Hello, how may I assist you today?
assistant
I am Rachel Moore. I made a reservation earlier to attend a get together party with my college friends. Due to some issues in college it  got postponed. Can you help me in changing?
user
Sure, please give me a moment.
assistant
Ok.
user
There is no reservation found with your given name.
assistant
Thank you for your help.
user
Thank you for reaching us.
assistant