Hello.
user
Hello, how may I address you?
assistant
 I would like to cancel my recent reservation due to some personal issues, will you help me with that?
user
Sure, will you please let me know your name to check the current status of your reservation and revert you?
assistant
Thank you for considering my request. Myself Robert Harris.
user
Ok, please allow me few minutes.
assistant
Sure, I will wait for your response.
user
We found a reservation under your name and it has been cancelled successfully.
assistant
Thank you for your help in cancelling my existing reservation.
user
Thank you for choosing us.
assistant