You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be  your helping hand?

USER: I want to cancel my recent reservation because of my health issues. Can you please help me out?

ASSISTANT: Sure, may I know your good name?

USER: Sure, my name is Sandra Campbell.

ASSISTANT: Ok, please wait for a while I will revert to you with current status.

USER: Sure.

ASSISTANT: I am sorry to inform that there is no reservation found with your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing our service.