Hello.
user
Hello, how may I help you?
assistant
I need to change my existing reservation, can you please help me?
user
Sure, I am here to help you for this. Let me check your reservation status in our database.
assistant
Thank you for kind response.
user
For changing the reservation, may I know your name please?
assistant
Myself Dennis Lee.
user
Please wait for a while.
assistant
Sure.
user
Sorry to intimate, no reservation is found with your criteria.
assistant
That's ok, thank you for searching my details.
user
Thank you very much for contacting our agency.
assistant