Hello.
user
Hello. How can I help you today?
assistant
Owning to an emergency, I want to change my existing reservation. Can you help me?
user
Sure, I am here to help you with that. Please wait for a moment.
assistant
Sure.
user
May I know your name please?
assistant
Ok, I am Dennis Mitchell.
user
Sorry Dennis, no reservation found by your name in our database.
assistant
That's fine, no problem. Thank you for your information.
user
It's my pleasure.
assistant