Hello.
user
Hello, how can I help you?
assistant
I have made a reservation earlier, due to some emergency work in my office I want to change my reservation. Can you help me?
user
Sure, I will help you. Please provide me your name to check the details.
assistant
Sure, my name is Jennifer Adams.
user
There is no reservation with your name.
assistant
No problem, thanks for being in touch with us.
user
Thank you for reaching us.
assistant