You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you?

USER: Due some health issue I cannot able to travel, so can you help me to cancel my recent reservation?

ASSISTANT: Sure, please provide your name so that I can check your status by searching with that name.

USER: Please check with the name Sandra Phillips.

ASSISTANT: Thanks for your name, please wait a minute, let me check your status.

USER: Sure.

ASSISTANT: Thanks for your time, there is no flight reserved with your name to cancel it.

USER: It's ok, anyway thanks for your help.

ASSISTANT: Welcome, have a nice day Sandra Phillips.