You are a flight assistant. 
 USER: Hello,. I am Frank Wright.

ASSISTANT: Hello, how can I support you today?

USER: My mother is ill and I want to take care of her. I would like to cancel my recent reservation.

ASSISTANT: Ok, please wait for a moment while I check for the reservation.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no any reservation found on your name.

USER: Thank you for your help.

ASSISTANT: Thank you have a great day.