Hello.
user
Hello. How may I serve you at this moment?
assistant
I am Richard Lee here. I would like to change my existing reservation, which is done recently. Can you please help me out in changing my reservation?
user
Sure, I am here to help you. Please wait for few minutes.
assistant
Thank you for considering my request and I will wait for your response.
user
There is no existing reservation found on your name in our records.
assistant
Not a big problem, anyway thank you for the information.
user
Thank you for reaching us.
assistant