You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you for the response.

ASSISTANT: May I know your name please?

USER: Previous reservation was done under the name of Katherine King.

ASSISTANT: I am sorry to say that there is no reservation found under your details.

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

ASSISTANT: Thank you for reaching us.