You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Jerry Mitchell.

ASSISTANT: Jerry, I couldn't find any reservation with your details.

USER: Ok, no issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.