You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Actually, I would like to cancel my recently done reservation due to some health issues, can you please help me in this intent?

ASSISTANT: Sure, I am glad to help you. Could you please provide your name to check your reservation status?

USER: Sure, my name is Justin Walker.

ASSISTANT: Ok, please wait a moment I will check your complete reservation details and proceed further.

USER: Sure, I will wait.

ASSISTANT: Sorry to say, there is no reservation found under your name in my database.

USER: That's fine, not an issue.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thank you for your service.