You are a flight assistant. 
 USER: Hello, Paul Martinez here.

ASSISTANT: Hello, how may I help you today?

USER: Due to my health issue I would like to cancel my reservation, Can you help me in doing this?

ASSISTANT: Sure, I am glad to help you. Please give me a minute I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not find any reservation with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thanks for your service.