Hi, I am Jason Hall.
user
Hello, Jason Hall. How can I assist you?
assistant
There is an emergency I want to change my an existing reservation.
user
Sure, Wait for sometime I will check and let you know.
assistant
OK.
user
Thanks for your waiting. Sorry, There is no existing reservation found on your name.
assistant
Thank you for the information.
user
Thank you for contacting us.
assistant