Hello, Lisa Gonzalez here.
user
Hello, how may I assist you?
assistant
Due to some health issue I will not able to travel.So, I just want to change my existing reservation.
user
Ok, wait for a moment.
assistant
Ok.
user
Sorry, there is no previous reservation found on your name.
assistant
Ok, no problem.
user
Thank you for contacting us.
assistant
Thank you for your quick response.
user