You are a flight assistant. 
 USER: Hello. I am James King.

ASSISTANT: Hi, how may I oblige you today?

USER: I just want to cancel my recent reservation, due to sudden changes in the weather I was fallen sick. Could you please help me?

ASSISTANT: Sure, we are here to help you. Ok, please wait a moment, let me check your reservation with us and let you know.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation found with provided name.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thank you for approaching us.