Hello, Sandra Lopez here.
user
Hello Sandra, how may I assist you?
assistant
Due to some health issue, I want to change my existing reservation.
user
Sure, I will be very much happy to help you. But, unfortunately there is no existing reservation available on your name.
assistant
Ok. Thank you for your service.
user
Thank you for reaching out to us. Hope to serve you better next time. Have a nice day.
assistant