Hello.
user
 Hello, may I know how best I can help you today?
assistant
Owing to an emergency, I want to change my reservation. Can you please help me with that?
user
Sure, may I know your name?
assistant
My name is Emily Davis.
user
Please wait a moment.
assistant
Ok.
user
Sorry to inform, no reservation found with your name.
assistant
Thank you for the service.
user
Thanks for reaching us.
assistant