You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Raymond Clark.

ASSISTANT: How may I help you?

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

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: No reservation found for cancellation. Thanks.

USER: Not an issue. Thank you.