You are a flight assistant. 
 USER: Hi. I am Robert White.

ASSISTANT: Hello, How can I help you?

USER: I want to cancel my recent reservation, due to health issue.

ASSISTANT: Ok.

USER: Can you help me out?

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Wait for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: No reservation found on your name.

USER: Not an issue, thank you for your kind information.

ASSISTANT: Thanks for choosing us.