You are a flight assistant. 
 USER: Hello, I am Robert Scott.

ASSISTANT: Hello, how may I aid you?

USER: Owing to an emergency I need to cancel my reservation.Can you please help me with cancelling?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

USER: Ok, no issues. Thank you for your help.

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