Hello.
user
Hello. How may I help you?
assistant
Due to some urgent meeting, I will change my existing reservation. Can you please help me for this?
user
May I know your name please?
assistant
Myself Stephan Evans.
user
Give me a while.
assistant
Sure.
user
Sorry no reservation found as per your preferences.
assistant
Not a big deal, anyhow thank you very much for your service.
user
Thank you for choosing us.
assistant