Hello.
user
Hello, how  may I help you?
assistant
I would like to change my reservation as I am leaving for delegates meet, can you please help me out?
user
Sure, I am here to help you for this. May I know your name please?
assistant
Paul Gonzalez here.
user
Please wait for a while, let me check your reservation status in our database.
assistant
Sure.
user
Sorry to intimate that, no reservation is found with your credentials.
assistant
Ok no problem, thank you for your services.
user
Thank you very much for contacting our agency.
assistant