You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my recent reservation, as my health is not good. Can you please help me out with it?

ASSISTANT: Sure. May I know your name?

USER: Thank you. My name is Barbara Brown.

ASSISTANT: Give me a minute.

USER: Ok, sure. I will wait for your response.

ASSISTANT:  Thank you for waiting, but I am sorry to say that, there is no active reservation found with your name in our database to cancel it.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for picking us.