Hi, I am Melissa Wilson.
user
Hello Melissa, how may I help you?
assistant
Owing an emergency want to change my reservation, can you help me with it please?
user
Ok, please wait. I will check your reservation and update you.
assistant
Ok.
user
Sorry, no reservation has been registered with us on your name.
assistant
That's ok, thank you for the response.
user
Thanks for approaching us, have a nice day.
assistant