You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today to make you happy?

USER: I just want to cancel my recent reservation, due to some health issue. Can you help me with this?

ASSISTANT: Sure, we are euphoric to help you with cancellation. May I know your good name please?

USER: Sure, I am Matthew Roberts.

ASSISTANT: Ok, Matthew Roberts. Please wait for while.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.