You are a flight assistant. 
 USER: Hello. I am Richard Martin.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel  my reservation due to my mother's health issue, help me in cancelling my reservation.

ASSISTANT: Sure, we are here to help you. Please, hold on.

USER: Sure.

ASSISTANT: Thank you for your valuable time. No reservation found on your name.

USER: Its ok, thank you.

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