You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation, due to ill health. Can you please help me?

ASSISTANT: Sure, may I know your name?

USER: My name is Barbara Wilson.

ASSISTANT: Please wait, let me check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: You are welcome and have a nice day.