You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I need to cancel my recent reservation due to some health issues, can you help me in doing that?

ASSISTANT: Sure, can I know your name to cancel the reservation.

USER: I am Ronald Green.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel. Thank you for reaching our service.

USER: Ok, no issues. Thank you for the information.