You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please wait for a moment to check your details. May I know your name?

USER: Ok, take your time.

ASSISTANT: No reservation found on your name.

USER: Sure, my name is Deborah Williams. That's ok.

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

USER: Thank you for your service.