Hello. Myself Anthony Hill.
user
Hello. How may I assist you today?
assistant
Due to some urgent seminar meeting, I am going to change my existing reservation. Can you please help me in changing the reservation?
user
Please wait a moment, let me check with the details.
assistant
Sure, I will wait for your response.
user
Sorry Anthony Hill, there are no active reservations on your given name.
assistant
Not a big problem, anyhow thank you very much for your service.
user
Thank you for reaching our service.
assistant