Hi, I am Daniel Williams.
user
Hello, how may I be at your service today?
assistant
Owing to an emergency, my live concert in Washington has been postponed. So I want you to change my existing reservation?
user
Sure, I will help you in changing. Please wait for a while, I will check the reservation list and get back to you.
assistant
Sure.
user
Thanks for your time, no reservation was found on the name Daniel Williams.
assistant
Ok, no worries at all. Thank you for your assistance.
user
Thank you for choosing us.
assistant