You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, please share your name and let me check.

USER: Thanks for the response. Janet Campbell is my name.

ASSISTANT: Please wait for a while.

USER: Ok, sure.

ASSISTANT: We didn't find any reservation on your name to cancel.

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

ASSISTANT: Thank you.