You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to cancel my recent reservation due to my health issues. Can you help me for this one?

ASSISTANT: Sure, may I know your name?

USER: Sure, George Lee here.

ASSISTANT: Please wait for a moment to check.

USER: Sure.

ASSISTANT: I have found your reservation, can I proceed to cancel?

USER: Yes, you can proceed with that cancellation.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you, for the help.

ASSISTANT: Thank you for choosing us.