You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, let me know your good name.

USER: I am Debra King.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. There is a reservation found by your name. May I proceed for cancellation?

USER: Sure.you can proceed for cancellation.

ASSISTANT: Ok, your reservation has been cancelled.

USER: Thank you for your response.

ASSISTANT: Thank you for picking us.