You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I have planned to meet my friends but due to health issue I am unable to travel, so can you please help me with cancelling my reservation?

ASSISTANT: Sure, may I know your good name?

USER: My name is Barbara Parker.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No worries at all, thank you.

ASSISTANT: Thank you for reaching us.