Hello.
user
Hello. How can I assist you?
assistant
Please see is there any chance to change my existing reservation, as I am having a meeting with my client on the same date which is more important for me.
user
Sure, I will help you to change your existing reservation. On which name you reservation has been booked?
assistant
Sharon Parker.
user
Sorry Parker, there is no reservation found on your name to change.
assistant
That's fine. Thank you for your information.
user
Welcome. Thank you for choosing us.
assistant